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$348+ Cheap flights from Monroe to Seattle (MLU - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
MLU — SEA
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap flight deals from Monroe to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Monroe (MLU) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 14, 2025.

Round-trip from

$348
(American Airlines)

Popular in

March

Cheapest in

November

Average price

$606
From Monroe Huenefeld to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 14% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Monroe to Seattle

Cheapest flights from Monroe to Seattle
Explore the most affordable flight options available from Monroe to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2025.

This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:24 pmMLU - SEA
1 stop6h 35mAmerican Airlines
Mon 10/1311:24 pmSEA - MLU
1 stop8h 14mAmerican Airlines
Deal found 9/14$348
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:51 amMLU - SEA
1 stop7h 03mAmerican Airlines
Sun 10/1211:24 pmSEA - MLU
1 stop8h 14mAmerican Airlines
Deal found 9/14$408
This Delta deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1712:53 pmMLU - SEA
1 stop9h 29mDelta
Tue 9/237:25 amSEA - MLU
1 stop7h 43mDelta
Deal found 9/12$429
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/175:47 amMLU - SEA
1 stop7h 03mAmerican Airlines
Tue 9/236:11 amSEA - MLU
2 stops9h 43mAmerican Airlines
Deal found 9/12$435
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:02 pmMLU - SEA
1 stop8h 52mAmerican Airlines
Mon 12/2212:59 amSEA - MLU
1 stop6h 35mAmerican Airlines
Deal found 9/12$633

Cheapflights Fare Finder

 
Customize your flight search to find flights from Monroe to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 14, 2025.
Use the filters below to find and compare flights from Monroe to Seattle that are best for you.

Fly from

Monroe

Fly to

Seattle

Route

Depart

Return

Price

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Thu 10/9

6:24 pm-10:59 pm

1 stop6h 35m

Seattle/Tacoma Intl

Mon 10/13

11:24 pm-9:38 am

1 stop8h 14m

$348

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Wed 10/8

5:51 am-10:54 am

1 stop7h 03m

Seattle/Tacoma Intl

Sun 10/12

11:24 pm-9:38 am

1 stop8h 14m

$408

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Thu 12/18

6:02 pm-12:54 am

1 stop8h 52m

Seattle/Tacoma Intl

Mon 12/22

12:59 am-9:34 am

1 stop6h 35m

$633

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Wed 10/8

6:03 am-4:54 pm

2 stops12h 51m

Seattle/Tacoma Intl

Sun 10/12

5:25 am-5:13 pm

2 stops9h 48m

$1,343

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Thu 12/18

6:00 am-2:59 pm

2 stops10h 59m

Seattle/Tacoma Intl

Mon 12/22

12:59 am-3:17 pm

2 stops12h 18m

$2,454

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Monroe to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Monroe with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Monroe to Seattle

What is the cheapest month to book a flight from Monroe to Seattle?

Currently, January is the cheapest month in which you can book a flight from Monroe to Seattle (average of $238). Flying from Monroe to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated September 14, 2025.
See what other customers who have flown with American Airlines from Monroe to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Overall

7.2

Food

6.4

Crew

8.0

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Monroe to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Monroe to Seattle?

    A quick flight from Monroe to Seattle can take about 6h 35m. American Airlines provides one of the quickest options available for as low as $348. Monroe and Seattle are separated by a distance of 1886 mi.

  • What is the cheapest airline to fly from Monroe to Seattle round-trip?

    Cheapflights users have booked flights from Monroe to Seattle round-trip from $468. This flight start at 23% lower than the current average price 3 months from now.

  • Can I find deals for flights from Monroe to Seattle that include hotel bookings?

    Yes. In addition to deals on Monroe to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Monroe to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Monroe to Seattle.

  • Can I find deals for business class flights from Monroe to Seattle?

    Yes. Cheapflights offers flight deals from Monroe to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Monroe to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Monroe to Seattle (average of $238). Flying from Monroe to Seattle in June is currently the most expensive (average of $388). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Monroe to Seattle

Discover the top airline that operate flights from Monroe to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$468Average$617FlexibilityNo cancel feeOn-time71%

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