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$643+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
MLU — SEA
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/2. 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 12/185:30 amMLU - SEA
1 stop7h 29mAmerican Airlines
Sun 12/2112:59 amSEA - MLU
1 stop6h 35mAmerican Airlines
Deal found 12/2$672
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Tue 12/306:02 pmMLU - SEA
1 stop7h 06mAmerican Airlines
Fri 1/212:59 amSEA - MLU
1 stop6h 35mAmerican Airlines
Deal found 12/3$764

Find 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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$643
(Delta)

Popular in

March

Cheapest in

October

Average price

$643
Provider with most accurate pricing for Monroe Huenefeld-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Monroe Huenefeld-Seattle/Tacoma Intl flights.
Search Deals
From Monroe Huenefeld to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($123 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 4, 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 4/30

5:20 pm-12:06 am

1 stop8h 46m

Seattle/Tacoma Intl

Sat 5/9

11:50 am-10:08 pm

1 stop8h 18m

$643

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Thu 12/18

5:30 am-10:59 am

1 stop7h 29m

Seattle/Tacoma Intl

Sun 12/21

12:59 am-9:34 am

1 stop6h 35m

$672

MonroeSeattle

MLU - SEA

MLUSEA

Monroe Huenefeld

Tue 12/30

6:02 pm-11:08 pm

1 stop7h 06m

Seattle/Tacoma Intl

Fri 1/2

12:59 am-9:34 am

1 stop6h 35m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Compare providers for flights from Monroe to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Monroe to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Monroe-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Monroe-Seattle flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Monroe-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Monroe-Seattle flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Monroe-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, September is the cheapest month in which you can book a flight from Monroe to Seattle (average of $288). Flying from Monroe to Seattle in March is currently the most expensive (average of $622). 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 December 4, 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
11,047 reviews

Overall

7.2

Food

6.5

Boarding

7.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.2
Good
11,047 reviews
American Airlines
7.2
Good
11,047 reviews

Overall

7.2

Food

6.5

Boarding

7.5

Crew

8.0

Comfort

7.2

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.

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 7h 29m. Delta provides one of the quickest options available for as low as $672. Monroe and Seattle are separated by a distance of 1886 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $397. This flight start at 32% 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, September is the cheapest month in which you can book a flight from Monroe to Seattle (average of $288). Flying from Monroe to Seattle in March is currently the most expensive (average of $622). 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
Tacoma
SeaTac
Lakewood
Olympia
Ocean Shores
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$397Average$601FlexibilityNo cancel feeOn-time71%

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