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$267+ Cheap flights from Moline to Seattle (MLI - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — SEA
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Moline to Seattle

Cheapest flights from Moline to Seattle
Explore the most affordable flight options available from Moline to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.

This American Airlines deal was found by Cheapflights users on 3/9. 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.
Mon 4/67:09 pm
MLI
-
SEA
1 stop7h 15m
American Airlines
Wed 4/151:19 pm
SEA
-
MLI
1 stop8h 35m
American Airlines
Deal found 3/9$329
This United Airlines deal was found by Cheapflights users on 3/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:34 pm
MLI
-
SEA
1 stop7h 00m
United Airlines
Sat 5/25:05 am
SEA
-
MLI
2 stops8h 07m
United Airlines
Deal found 3/11$354
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:05 pm
MLI
-
SEA
1 stop6h 54m
United Airlines
Sat 5/2311:02 am
SEA
-
MLI
2 stops9h 27m
United Airlines
Deal found 3/10$378
This American Airlines deal was found by Cheapflights users on 3/8. 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 7/144:45 pm
MLI
-
SEA
1 stop10h 12m
American Airlines
Tue 7/213:06 pm
SEA
-
MLI
1 stop6h 45m
American Airlines
Deal found 3/8$379
This American Airlines deal was found by Cheapflights users on 3/8. 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 4/1412:51 pm
MLI
-
SEA
1 stop11h 47m
American Airlines
Fri 4/1711:33 pm
SEA
-
MLI
1 stop10h 48m
American Airlines
Deal found 3/8$385
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:30 am
MLI
-
SEA
1 stop7h 19m
United Airlines
Sat 3/2811:59 pm
SEA
-
MLI
1 stop7h 59m
United Airlines
Deal found 3/8$392
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/279:58 pm
MLI
-
SEA
1 stop25h 05m
Multiple Airlines
Tue 3/3110:08 pm
SEA
-
MLI
2 stops35h 19m
Multiple Airlines
Deal found 3/9$394
This American Airlines deal was found by Cheapflights users on 3/10. 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 3/267:09 pm
MLI
-
SEA
1 stop7h 15m
American Airlines
Mon 3/301:37 pm
SEA
-
MLI
1 stop8h 00m
American Airlines
Deal found 3/10$399
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:34 pm
MLI
-
SEA
1 stop6h 52m
Alaska Airlines
Mon 9/712:58 am
SEA
-
MLI
1 stop8h 05m
Alaska Airlines
Deal found 3/10$419
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:55 pm
MLI
-
SEA
2 stops11h 32m
United Airlines
Thu 4/307:00 am
SEA
-
MLI
1 stop6h 12m
United Airlines
Deal found 3/9$422

Find flight deals from Moline to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Moline (MLI) 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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(American Airlines)

One-way from

$267
(Kiwi.com)

Popular in

May

Cheapest in

April

Average price

$464
Provider with most accurate pricing for Moline Quad-City-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Moline Quad-City-Seattle/Tacoma Intl flights.
Search Deals
From Moline Quad-City to Seattle/Tacoma Intl
Search Deals
One-way flight from Moline Quad-City to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Moline 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 March 12, 2026.
Use the filters below to find and compare flights from Moline to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 5/9

3:47 pm-10:47 pm

1 stop9h 00m

Seattle/Tacoma Intl

Tue 5/12

11:53 pm-10:04 am

1 stop8h 11m

$349
Quickest round-trip

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Mon 4/27

7:34 pm-12:34 am

1 stop7h 00m

Seattle/Tacoma Intl

Sat 5/2

5:05 am-3:12 pm

2 stops8h 07m

$354

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Tue 3/24

10:46 am-7:28 pm

2 stops10h 42m

Seattle/Tacoma Intl

Sat 3/28

7:00 am-3:07 pm

1 stop6h 07m

$398

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Mon 6/1

6:34 pm-11:59 pm

1 stop7h 25m

Seattle/Tacoma Intl

Tue 6/9

11:52 pm-9:59 am

1 stop8h 07m

$398

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 5/2

3:47 pm-10:47 pm

1 stop9h 00m

Seattle/Tacoma Intl

Tue 5/5

7:00 am-4:51 pm

1 stop7h 51m

$419

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 5/2

12:51 pm-10:53 pm

2 stops12h 02m

Seattle/Tacoma Intl

Tue 5/5

1:28 pm-11:54 pm

1 stop8h 26m

$424

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Tue 9/1

11:33 am-10:07 pm

2 stops12h 34m

Seattle/Tacoma Intl

Mon 9/7

12:58 am-11:03 am

1 stop8h 05m

$424

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 7/22

6:34 pm-11:59 pm

1 stop7h 25m

Seattle/Tacoma Intl

Fri 7/31

10:40 pm-9:59 am

1 stop9h 19m

$435
Cheapest one-way

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sun 7/5

12:31 pm-1:01 pm

2 stops26h 30m

$273

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sun 3/29

12:17 pm-8:21 pm

2 stops34h 04m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Moline 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 Moline to Seattle in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Moline-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Moline-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Moline-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Moline-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Moline-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 Moline to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Moline 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 Moline to Seattle

How far ahead should I book a flight from Moline to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Moline to Seattle. Price data was last updated on March 6, 2026.

The best time to book flights from Moline to Seattle is 42 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Moline to Seattle (average of $211). Flying from Moline to Seattle in January is currently the most expensive (average of $308). 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 March 12, 2026.
Read reviews from past customers who have flown Alaska Airlines,United Airlines, andAmerican Airlines from Moline to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
12,029 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
12,029 reviews
Alaska Airlines
8.0
Very good
12,029 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,418 reviews
Alaska Airlines
8.0
Very good
12,029 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
American Airlines
7.1
Good
11,432 reviews
Alaska Airlines
8.0
Very good
12,029 reviews

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

Find useful and relevant information for your journey from Moline 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 Moline to Seattle?

    A quick flight from Moline to Seattle can take about 9h. United Airlines provides one of the quickest options available for as low as $349. There are 1609 mi between Moline and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Moline to Seattle round-trip?

    Our cheapest airline available from Moline to Seattle is American Airlines. Our recent data shows that you can find tickets from as low as $288 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $322 and $423 round-trip. You may be able to fly from Moline to Seattle for 40% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Moline 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 Moline to Seattle?

    Currently, May is the cheapest month in which you can book a flight from Moline to Seattle (average of $211). Flying from Moline to Seattle in January is currently the most expensive (average of $308). 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
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Moline to Seattle

Discover the top 3 airlines that operate flights from Moline 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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$503FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$322Average$502FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$423Average$588FlexibilityNo cancel feeOn-time75%

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