$340 Cheap Flights from Monroe (MLU) to Seattle (SEA)

View $340 flight on Sat, Apr 25, 2026Opens in a new window

Popular airlines from Monroe, LA (MLU-Monroe Regional) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Monroe to Seattle (MLU-SEA)

Prices were available within the past 7 days and start at $340 for one-way flights and $353 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Aug 22 - Sun, Aug 23
MLU
Monroe
SEA
Seattle
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Aug 22 from Monroe to Seattle, returning Sun, Aug 23, priced at $353 found 3 days ago
American Airlines
Thu, Apr 30 - Sun, May 3
MLU
Monroe
SEA
Seattle
$358 Roundtrip, found 1 hour ago
$358
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Apr 30 from Monroe to Seattle, returning Sun, May 3, priced at $358 found 1 hour ago
American Airlines
Fri, May 1 - Sun, May 3
MLU
Monroe
SEA
Seattle
$392 Roundtrip, found 9 hours ago
$392
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Fri, May 1 from Monroe to Seattle, returning Sun, May 3, priced at $392 found 9 hours ago
American Airlines
Sat, May 2 - Sat, May 9
MLU
Monroe
SEA
Seattle
$407 Roundtrip, found 22 hours ago
$407
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Sat, May 2 from Monroe to Seattle, returning Sat, May 9, priced at $407 found 22 hours ago
American Airlines
Fri, May 1 - Mon, May 4
MLU
Monroe
SEA
Seattle
$417 Roundtrip, found 1 day ago
$417
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, May 1 from Monroe to Seattle, returning Mon, May 4, priced at $417 found 1 day ago
American Airlines
Fri, May 1 - Mon, May 4
MLU
Monroe
SEA
Seattle
$425 Roundtrip, found 1 day ago
$425
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, May 1 from Monroe to Seattle, returning Mon, May 4, priced at $425 found 1 day ago
American Airlines
Sat, May 2 - Sat, May 9
MLU
Monroe
SEA
Seattle
$434 Roundtrip, found 22 hours ago
$434
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Sat, May 2 from Monroe to Seattle, returning Sat, May 9, priced at $434 found 22 hours ago
Delta
Tue, Sep 1 - Wed, Sep 9
MLU
Monroe
SEA
Seattle
$438 Roundtrip, found 1 day ago
$438
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 1 from Monroe to Seattle, returning Wed, Sep 9, priced at $438 found 1 day ago
American Airlines
Sat, May 2 - Sat, May 9
MLU
Monroe
SEA
Seattle
$440 Roundtrip, found 22 hours ago
$440
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Sat, May 2 from Monroe to Seattle, returning Sat, May 9, priced at $440 found 22 hours ago
American Airlines
Fri, Jun 5 - Tue, Jun 9
MLU
Monroe
SEA
Seattle
$443 Roundtrip, found 5 days ago
$443
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Jun 5 from Monroe to Seattle, returning Tue, Jun 9, priced at $443 found 5 days ago

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From $297 - $858 per traveler.

Frequently asked questions

How much does a flight from Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from $340 and cheap return flights from $353 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Expedia. One-way flights generally range between $358 and $1108, and roundtrip flights usually range from $452 to $1772. 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 Monroe, LA (MLU-Monroe Regional) 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest month to fly from MLU to SEA is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter MLU to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
American Airlines is one of the cheapest airlines offering connecting flights from Monroe (MLU) to Seattle (SEA), with round-trip tickets starting from around $248 with a layover in Dallas-Fort Worth Intl. (DFW). 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Monroe, LA (MLU-Monroe Regional) 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 time to fly from Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Monroe (MLU-Monroe Regional) to Seattle (SEA-Seattle - Tacoma Intl.) typically departs at around 5:30 AM, operated by American Airlines. This seasonal service is active in December, allowing you to maximize your time 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When traveling from Monroe (MLU) to Seattle (SEA), the most popular departure times are in the morning, from 6am to 9am. About 41% of passengers prefer this time, which allows for a full day of activities upon arrival in Seattle. Delta Airlines is one of the main carriers flying during this window.
How long does it take to fly from Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying from MLU to SEA with a connection usually takes about 8 hours, traveling roughly 1,887 miles. 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
First class seats are offered on the MLU to SEA route with Delta Air Lines and American Airlines.
How do I earn miles on a Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Monroe, LA (MLU-Monroe Regional) 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 Monroe Regional (MLU)?
From Monroe Regional (MLU), you can fly into Seattle - Tacoma Intl. (SEA) to reach Seattle. Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Dallas-Fort Worth Intl. (DFW) 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Monroe, LA (MLU-Monroe Regional) 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Monroe, LA (MLU-Monroe Regional) 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 Monroe, LA (MLU-Monroe Regional) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Monroe, LA (MLU-Monroe Regional) 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

Origin airport
Monroe Regional
Destination airport
Seattle - Tacoma Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$352
Distance
1886 mi

Book with confidence

Monroe to Seattle Flights

The cheapest times to fly from Monroe 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 Monroe to Seattle are during the month of August. You can find some of the cheapest flights from Monroe to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Monroe to Seattle

Sunday is one of the best days to book for cheap flights from Monroe 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 Monroe 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 Monroe to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from $340 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 Monroe 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 Monroe 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.

 

Monroe to Seattle Flights

*Flight schedules are subject to change.

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