An Alaska Airlines plane taking off with a snow-capped mountain in the background.

$154 Cheap Flights from Kalispell (FCA) to Seattle (SEA)

View $154 flight on Sat, Oct 31, 2026Opens in a new window

Popular airlines from Glacier Park Intl. Airport (FCA) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Kalispell to Seattle (FCA-SEA)

Prices were available within the past 7 days and start at $154 for one-way flights and $277 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Oct 24 - Sat, Oct 31
FCA
Kalispell
SEA
Seattle
$277 Roundtrip, just found
$277
Roundtrip
just found
Select Alaska Airlines flight, departing Sat, Oct 24 from Kalispell to Seattle, returning Sat, Oct 31, priced at $277 just found
Alaska Airlines
Sat, Oct 31 - Mon, Nov 9
FCA
Kalispell
SEA
Seattle
$282 Roundtrip, found 5 hours ago
$282
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, Oct 31 from Kalispell to Seattle, returning Mon, Nov 9, priced at $282 found 5 hours ago
Alaska Airlines
Sat, Oct 3 - Sat, Oct 10
FCA
Kalispell
SEA
Seattle
$284 Roundtrip, found 9 hours ago
$284
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, Oct 3 from Kalispell to Seattle, returning Sat, Oct 10, priced at $284 found 9 hours ago
Alaska Airlines
Sat, Feb 6 - Mon, Feb 8
FCA
Kalispell
SEA
Seattle
$287 Roundtrip, found 4 days ago
$287
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Feb 6 from Kalispell to Seattle, returning Mon, Feb 8, priced at $287 found 4 days ago
Alaska Airlines
Sat, Jan 23 - Sat, Jan 30
FCA
Kalispell
SEA
Seattle
$287 Roundtrip, found 9 hours ago
$287
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, Jan 23 from Kalispell to Seattle, returning Sat, Jan 30, priced at $287 found 9 hours ago
Alaska Airlines
Sat, Nov 14 - Mon, Nov 16
FCA
Kalispell
SEA
Seattle
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 14 from Kalispell to Seattle, returning Mon, Nov 16, priced at $288 found 3 days ago
Alaska Airlines
Fri, Nov 13 - Sat, Nov 14
FCA
Kalispell
SEA
Seattle
$290 Roundtrip, found 5 days ago
$290
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Nov 13 from Kalispell to Seattle, returning Sat, Nov 14, priced at $290 found 5 days ago
Delta
Sat, Oct 24 - Sat, Oct 31
FCA
Kalispell
SEA
Seattle
$307 Roundtrip, found 8 hours ago
$307
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Oct 24 from Kalispell to Seattle, returning Sat, Oct 31, priced at $307 found 8 hours ago
United
Wed, Oct 7 - Sat, Oct 10
FCA
Kalispell
SEA
Seattle
$675 Roundtrip, found 1 day ago
$675
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 7 from Kalispell to Seattle, returning Sat, Oct 10, priced at $675 found 1 day ago
American Airlines
Wed, Jun 9 - Thu, Jun 10
FCA
Kalispell
SEA
Seattle
$902 Roundtrip, found 4 days ago
$902
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Jun 9 from Kalispell to Seattle, returning Thu, Jun 10, priced at $902 found 4 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $482
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $482

Find the cheapest month to fly from Kalispell (FCA) to Seattle (SEA)

April is typically the cheapest month to fly

From $147 - $212 per traveler.

What you need to know for your flight from Glacier Park Intl. to Seattle - Tacoma Intl.

Kalispell (FCA) to Seattle (SEA) at a glance

Travel from Kalispell (FCA) to Seattle (SEA) with a variety of airlines on this domestic short-haul route. You can compare options for flights from Kalispell, ranging from full-service carriers to budget-friendly choices, ensuring you find the itinerary that aligns with your travel plans, budget, and schedule. Discover essential information for your journey from Glacier Park International Airport to Seattle-Tacoma International Airport as you prepare to explore the iconic sights and neighborhoods of Seattle.

  • Fastest flight duration: around 1h 30m non-stop
  • Route distance: roughly 400 miles (645 km)
  • Flights per week: around 10 departures on average
  • Typical fares (one-way): economy tickets often range from $80–$365, depending on seasonality and how far ahead you book

Flights from Glacier Park International Airport (FCA) to Seattle - Tacoma International Airport (SEA)

According to recent traveler bookings, here are the top airlines favored for flights from Kalispell to Seattle, featuring both non-stop and one-stop options. Many travelers find themselves with layovers at Salt Lake City International Airport (SLC), which typically lasts about an hour, or at Portland International Airport (PDX), also around an hour. This variety allows you to consider different combinations of price, total travel time, and cabin class to discover the ideal itinerary.

  • Alaska Airlines: This full-service airline provides non-stop flights, with one-way ticket prices generally falling between $80 and $410. Alaska Airlines operates about 95% of the departures on this route, and the total travel time is 1 hour and 30 minutes.
  • Delta: A full-service airline that offers one-stop journeys, Delta's one-way fares usually range from $145 to $470. It represents around 3% of the flights on this route, with an in-flight duration of 4 hours and a total travel time of approximately 5 hours and 15 minutes, including layover.
  • Hawaiian Airlines: Known for its non-stop service, this full-service carrier has one-way fares typically between $105 and $475. Hawaiian Airlines accounts for about 2% of the departures on this route, with a complete journey time of 1 hour and 30 minutes.

Travelers have the option to enhance their journey from Kalispell to Seattle with an upgrade. Alaska Airlines provides both first-class and business-class service on this route for a more comfortable experience.

Best time to fly from Kalispell (FCA) to Seattle (SEA)

The most popular months for travelers flying from Kalispell to Seattle are January, February, and March, when peak temperatures in Seattle reach up to 43.9°F in March. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 44.2°F. For better deals, April usually offers the lowest average one-way fare around $172. Flight availability peaks in August and October, with approximately 13 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: April usually offers good deals with average one-way fare around $172, roughly 15% cheaper than the yearly average.
  • More budget-friendly months to fly: June, January, and November typically offer average one-way fares of around $183.
  • Most flight options: August and October have the highest number of flights from Kalispell to Seattle, with approximately 13 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January40.3°F (4.6°C)Slightly High10$183
February40.5°F (4.7°C)Slightly High10$209
March43.9°F (6.6°C)Slightly High9$212
April48.6°F (9.2°C)Average10$172
May55.8°F (13.2°C)Slightly Low10$185
June61.0°F (16.1°C)Average11$182
July67.1°F (19.5°C)Slightly Low10$223
August67.5°F (19.7°C)Average13$224
September61.3°F (16.3°C)Average12$246
October52.7°F (11.5°C)Average13$223
November44.2°F (6.8°C)Slightly Low9$184
December39.2°F (4.0°C)Average9$195

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Kalispell (FCA) to Seattle (SEA)

  • Kalispell to Seattle (FCA-BFI): Boeing Field Airport (BFI) is located approximately 6 miles from Seattle - Tacoma International Airport (SEA), offering convenient access to the city.
  • Kalispell to Seattle (FCA-LKE): Lake Union Seaplane Base Airport (LKE) lies about 13 miles from Seattle - Tacoma International Airport (SEA), providing an alternative travel option to the area.

How to find the best prices for flights from Kalispell (FCA) to Seattle (SEA)

Getting some of the best deals on flights from Kalispell to Seattle is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Departures in the afternoon (12 p.m. to 6 p.m.) not only tend to be less expensive but are also the most popular flight times. Additionally, flying on Fridays offers both lower prices and is the most sought-after travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from Glacier Park International Airport

Seattle welcomes travelers from Kalispell with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles from the airport, easily accessible on foot, while Tukwila Station, a train station, is situated about 4.3 miles from the airport and typically reached by car.

Frequently asked questions

How much does a flight from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $154 and cheap return flights from $277 Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights usually range from $89 to $1175, and return flights typically cost between $247 and $1369. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
April is the cheapest month to fly from Kalispell, MT (FCA) to Seattle, WA (SEA), with average return fares around $237. This fare is about 25% lower than the average price throughout the year, as travel demand is generally lower in spring. Other budget-friendly months for this route include January and November.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Choose from 2 airlines operating direct flights from FCA to SEA:

  • Hawaiian Airlines operates around 21 direct flights from FCA to SEA every week
  • British Airways operates around 7 direct flights from FCA to SEA every week

What is the cheapest airline that flies from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Glacier Park Intl. (FCA) to Seattle - Tacoma Intl. (SEA), with round-trip tickets starting from around $512. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Kalispell, MT (FCA) to Seattle, WA (SEA) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. United offers the most daily flights from FCA to SEA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
For flights from Kalispell (FCA) to Seattle (SEA), the best times to fly are in January and April. Return flights during these months average around $237, making them quite budget-friendly. January is a great time to enjoy winter sports in the area, while April brings beautiful spring blooms to Seattle.*Prices based on flights available on Expedia in the last year.
How many flights per day from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
On average, there are around 1 nonstop flights per day from Glacier Park Intl. (FCA) to Seattle - Tacoma Intl. (SEA). For more options, look at flights that include layovers.
What is the earliest flight from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Kalispell, MT (Glacier Park Intl.) to Seattle, WA (Seattle - Tacoma Intl.) typically departs at about 5:00 AM. This flight is operated by Delta, making it a great choice for those wanting to start their day early in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Kalispell, MT (FCA) to Seattle, WA (SEA) are from 12pm to 3pm. This accounts for around 37% of total traffic. Many major carriers, including Alaska Airlines and United Airlines, offer flights during this window. Many travelers prefer this time because it fits well with afternoon plans in Seattle.
How long does it take to fly from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A nonstop flight from FCA to SEA typically takes around 1 hour 50 minutes, covering approximately 378 miles. Connecting flights on this route usually add 5 hours 40 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
First class is available on flights from FCA to SEA. First class cabins are available on:

  • Delta Air Lines
  • United Airlines
  • American Airlines
  • Hawaiian Airlines

How much is a business class flight from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Kalispell (FCA) to Seattle (SEA) typically costs between $738 - $1,437 per adult. A non-stop, one-way business class flight is usually around $449 - $629. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Glacier Park Intl. (FCA)?
From Glacier Park Intl. (FCA), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Salt Lake City Intl. (SLC), Denver Intl. (DEN), Los Angeles Intl. (LAX) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) Seattle Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Kalispell, MT (FCA-Glacier Park Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

0
Origin airport
Glacier Park Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$273
Distance
377 mi

Book with confidence

Kalispell to Seattle Flights

The cheapest times to fly from Kalispell to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kalispell to Seattle are during the month of October. You can find some of the cheapest flights from Kalispell to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kalispell to Seattle

Sunday is one of the best days to book for cheap flights from Kalispell to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Kalispell to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kalispell to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $154 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kalispell to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Kalispell to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Kalispell to Seattle Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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