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$29 Cheap Flights to Index, WA

View $29 flight on Tue, Oct 27, 2026Opens in a new window

Popular airlines to Index

How much is the cheapest flight to Index?

Prices were available within the past 7 days and start at $29 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Harbour Air Seaplanes
Harbour Air Seaplanes
Harbour Air Seaplanes
Harbour Air Seaplanes
Hahn Air Technologies

Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA)

From $220 - $368 per traveler.

What you need to know for your flight to Index

Flights to Index at a glance

Traveling to Index is easy—simply select from a range of full-service or budget airlines. Use a flight tracker to compare journey times and find the best airline tickets that fit your budget and schedule, allowing you to explore the city's iconic sights and vibrant neighborhoods.

  • Major airports near Index: Seattle Paine Field International Airport (PAE), Lake Union Seaplane Base Airport (LKE)
  • Closest (typical) airport to Index: Seattle Paine Field International Airport, PAE (around 34 miles)
  • Flights per week: 270+ flights arriving across Index airports
  • Number of airlines that fly to Index: around 5+ carriers

Popular airports near Index

Index is a charming city perfect for outdoor enthusiasts, adventure seekers, and those looking to enjoy stunning scenery. Travelers flock to Index for various reasons, including business, family trips, and romantic getaways. The city is conveniently accessible via two major airports, making travel planning straightforward.

  • Seattle Paine Field International Airport (PAE): Situated in Snohomish County, Washington, approximately 34 miles from Index, this airport facilitates both domestic and international flights, linking travelers to over 30 domestic cities and one international destination. Passengers can opt for upgraded business and first-class seati ng for enhanced comfort, depending on the airline and route. Key airlines operating here include Alaska Airlines, Frontier Airlines, and Hawaiian Airlines.
  • Lake Union Seaplane Base Airport (LKE): Found in King County, Washington, about 39 miles from Index, this airport specializes in international routes. The primary airline serving this facility is Harbour Air Seaplanes, providing unique travel experiences over the water.

Top routes to Index

  • Las Vegas (LAS) to Index (PAE), with one-way tickets available from around $45
  • Phoenix (PHX) to Index (PAE), with one-way flights starting at around $50
  • San Francisco (SFO) to Index (PAE), with one-way tickets available from around $65
  • Los Angeles (LAX) to Index (PAE), with one-way flight options from around $80
  • San Diego (SAN) to Index (PAE), with one-way flight options from around $80

Cheapest routes to Index

  • Denver (DEN) to Index (PAE), with cheap one-way fares from around $35
  • Las Vegas (LAS) to Index (PAE), with low one-way fares from around $45
  • Phoenix (PHX) to Index (PAE), with affordable one-way prices from around $50
  • San Francisco (SFO) to Index (PAE), with low-cost one-way tickets from around $65
  • Palm Springs (PSP) to Index (PAE), with cheap one-way fares from around $70

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Index

  • Alaska Airlines: Operating flights to Seattle Paine Field International Airport (PAE), Alaska Airlines represents about 75% of arrivals in Index. The typical one-way fare hovers around $230. Depending on the route, travelers may find options for business class and first class.
  • Frontier Airlines: Providing service to Seattle Paine Field International Airport (PAE), Frontier Airlines makes up roughly 18% of arrivals to Index. The average one-way ticket costs around $140.
  • Hawaiian Airlines: Connecting to Seattle Paine Field International Airport (PAE), Hawaiian Airlines accounts for approximately 5% of Index arrivals. The average one-way fare is close to $240, with first-class service available depending on the specific route.
  • American Airlines: Serving Seattle Paine Field International Airport (PAE), American Airlines is responsible for about 2% of arrivals to Index. The average one-way fare is around $240, with first-class service options available based on the route.
  • Harbour Air Seaplanes: Operating flights to Lake Union Seaplane Base Airport (LKE), Harbour Air Seaplanes offers an average one-way fare of about $160.

Best time to fly to Index

The most popular months for travelers to fly to Index are March, June, and July, when peak temperatures in Index can reach up to 64.8°F in July. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 41.4°F. For better deals, July usually offers the lowest average one-way fare around $141, roughly 19% cheaper than the yearly average. Looking for additional cheaper months to fly? June and November offer average one-way fares of around $148, making them good options for flexible travelers.

calendar iconMonthtemperature iconTemperaturerain iconPrecipitationmostly cloudy iconCloudinesscrowd level iconDemandprice iconAverage one-way Fare
January36.9°F (2.7°C)Moderate RainMostly CloudyAverage$207
February37.0°F (2.8°C)Moderate RainMostly CloudyAverage$205
March40.8°F (4.9°C)Moderate RainMostly CloudyModerately High$209
April45.9°F (7.7°C)Light RainMostly CloudyAverage$222
May53.8°F (12.1°C)Light RainMostly CloudyModerately Low$179
June58.6°F (14.8°C)Light RainMostly SunnyModerately High$143
July64.8°F (18.2°C)No Rain (Dry)Mostly SunnyModerately High$141
August65.7°F (18.7°C)No Rain (Dry)Mostly SunnyAverage$157
September59.7°F (15.4°C)Light RainMostly SunnyModerately Low$168
October50.4°F (10.2°C)Moderate RainMostly SunnyAverage$156
November41.4°F (5.2°C)Moderate RainMostly CloudyModerately Low$153
December35.4°F (1.9°C)Moderate RainMostly CloudyAverage$166

*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.

How to save money on a flight to Index

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

  1. 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.
  2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
  3. Bundle and save—book a flight and unlock a hotel deal on Expedia.*
  4. 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 baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
  5. Earn miles—you can earn airline miles when you book your Index flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Index

Index welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Index efficiently:

  • Public transportation: From Seattle Paine Field International Airport, both Lynnwood City Center Station (a metro station) and Everett Station (a train station) are conveniently located about 8.5 miles away by car, making them easily accessible transport options for travelers heading into the city.
  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Index, with private rides that can be arranged in advance.
  • Car rental: Renting a car in Index is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Index on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay around Index

  • Sultan: Sultan is located 12 miles drive away from Index and is a haven for outdoor enthusiasts. Visitors flock here to experience breathtaking scenery and thrilling adventures. Key attractions include Wallace Falls State Park, where you can hike amidst stunning waterfalls, and the Evergreen State Fairgrounds, perfect for a family outing. The Skykomish River offers picturesque views, making it ideal for those looking to relax in nature. For outdoor recreation, Sultan is a must-visit destination, especially in the summer and fall when the scenery is at its finest.
  • Gold Bar: Gold Bar is located 7 miles drive away from Index and is a charming city known for its outdoor adventures and scenic beauty. Nature lovers will enjoy Wallace Falls State Park, which provides excellent hiking trails and stunning vistas. Salmon Run Park offers a family-friendly atmosphere perfect for picnics and outdoor fun. Additionally, the Skykomish River flows nearby, providing opportunities for fishing and relaxation. Spring and summer are particularly lovely times to visit, as the area bursts with natural beauty.
  • Skykomish: Located 14 miles drive away from Index, Skykomish is a small city that attracts adventurers and nature lovers alike. The area is renowned for its ski resorts and outdoor activities, making it a prime winter destination. Explore the historic site of Wellington or relax by Gunn Lake, which is perfect for romantic getaways and leisurely days by the water. Forterra, a nature reserve, offers eco-friendly adventures that connect you with the natural world. Winter sports enthusiasts will find Skykomish especially appealing during the snowy season.

Tips for short-haul flights to Index

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

  • Pack light and skip checked bags—when flying with budget airlines, it's often more economical to travel with just a carry-on. Maximize space by using mini toiletries, wearing your bulkiest clothing, and coordinating outfits efficiently. This strategy also allows you to bypass the wait at baggage claim upon arrival.
  • Bring your own entertainment—many short-haul flights may lack in-flight entertainment options. To keep yourself entertained, download TV shows, movies, music, or podcasts ahead of time, and consider bringing a book. Remember to fully charge your devices before you board.
  • Arrive at the airport in plenty of time—even for short or domestic flights, it's advisable to arrive at least 1.5 to 2 hours before your departure, taking into account traffic and security lines.
  • Bring your own snacks and water—pack some snacks and a refillable water bottle to stay hydrated and save money while at the airport.

Tips for long-haul flights to Index

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

  • Select your seat in advance—for long flights, choosing your seat is crucial for comfort. Full-service airlines often allow free seat selection once online check-in begins, typically 24–48 hours prior to your flight. Some airlines may provide seat selection even earlier.
  • Arrive at the airport in plenty of time—make sure to arrive at least 3 hours before departure for international flights to accommodate check-in, security, and immigration procedures.
  • Relax at the airport—if you have some extra time, explore the shops, grab a coffee, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is generally free and available.
  • Adjust to the new time zone mid-flight—begin to align your body clock by changing your watch and adjusting your sleep schedule to your destination's time zone. Try to rest or stay awake during the flight according to the local time at your arrival destination to help minimize jet lag.

Frequently asked questions

What month is the cheapest to fly to Index?
Plan your trip for September if you want to land a good price on your fare. It's the cheapest month to fly to Index. If possible, avoid traveling during peak periods such as school vacation time or public holidays.
Which US cities have the cheapest flights to Index?
Typically, you'll find that Portland, Anchorage and Phoenix have cheap flights to Index. However, flexibility is the secret to landing the best prices. Fly midweek or during the off-peak season to keep costs down.
Which US cities fly direct to Index?
Pick from 83 US destinations that have direct flights to Index. When booking on Expedia, select the "Direct flights only" filter to find nonstop options. Fly to Index from any of these major cities:
  • Portland
  • Anchorage
  • Phoenix
  • Los Angeles
  • Spokane
How to find a cheap flight to Index?
Book in advance to maximize your chances of getting cheap flights to Index. Also, consider visiting during off-season months like March and October. If you fly on a Thursday, you can save an average of 16% compared to departing on a Sunday.* Save time checking every day and create a price alert on the Expedia app. We'll let you know when fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Index?
Staying flexible about your travel plans can help you to find last-minute offers on cheap flights to Index. To see all the available options, consider looking at different ticket types, changing your Index trip dates, leaving from an alternative airport or going with another carrier.
How far in advance should I book a flight to Index?
To snap up some of the biggest savings on domestic journeys, book your flight to Index 28 days ahead of your travel dates. For international flights, it's two to four months in advance. This boosts your chances of locking in the departure dates and seats you want.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Index?
You'll save an average of 8% if you purchase tickets on a Sunday rather than Fridays, which tend to be the most expensive day to book.* When it comes to scoring a cheap flight to Index, it's all about timing.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Index?
Index is accessible from 118 airports worldwide through 31 airlines, with Seattle - Tacoma Intl. Airport (SEA) as its chief entry point. Consider these major airlines to Index when booking your trip:
  • Alaska Airlines
  • Delta Air Lines
  • American Airlines
  • United Airlines
Where do you fly into Index?
The main airport when you fly to Index is Seattle - Tacoma Intl. Airport (SEA), but there are other nearby choices like Kenmore Air Harbor Airport (KEH) and Snohomish County - Paine Field Airport (PAE). You can also arrive at Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) when flying to Index.
How far is the airport from central Index?
If you're arriving at Seattle - Tacoma Intl. Airport (SEA), you'll be around 45 mi southwest of the center of Index.
Can I save money by booking an Index trip package?
You could potentially save hundreds of dollars if you secure an Index flight and hotel package deal on Expedia. And you'll save time and hassle by having all your travel plans in one place. Try bundling your flight and hotel with add-ons like tours and car rentals for your own customized Index escape.
Can I change or cancel my flight to Index?
You can typically cancel or change your flight to Index within 24 hours of booking. However, be mindful that some flights are non-refundable. In those cases, you may receive a credit toward a future trip instead of a direct refund. Remember to check the airline's rules and restrictions in your itinerary for specific details. You can use Expedia's "Changes included" or "No cancel fee" filters during your search to secure cheap flights to Index with flexible change policies. For more information, visit our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

Book with confidence

Tips to find the cheapest flights to Index

The cheapest day to fly

Get started finding a cheap flight to Index on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

September is the cheapest month to fly to Index. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Index. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Index, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Index

The lowest price for round-trip flights to Index in 2026 starts from from $58, while one-way tickets start from from $29. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Index. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Index

Harbour Air Seaplanes, Hahn Air Technologies are just some of the airlines that can typically offer cheap tickets to Index. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Index and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Index, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Index. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Index plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Index

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Index.

Stopover savings

The cheapest tickets to Index are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Index. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Index for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Index. Simply download the free Expedia app to your smart device and activate Index flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Index. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

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

Tips to find the cheapest flights to Index

Travel information

Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Destination city name
Seattle
Roundtrip price
$58

Trending flights to Index

Prices were available within the past 7 days and start at $29 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines

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