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$117+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
MLI — SEA
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Moline to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Moline Quad-City to Seattle/Tacoma Intl are usually found in February or January, booked 78 days in advance, depart on a Sunday or Tuesday and return on a Saturday

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 December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/258:45 amMLI - SEA
1 stop7h 13mUnited Airlines
Mon 12/2911:59 pmSEA - MLI
1 stop8h 13mUnited Airlines
Deal found 12/10$401
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:10 amMLI - SEA
1 stop9h 45mAmerican Airlines
Wed 12/175:18 amSEA - MLI
1 stop7h 39mAmerican Airlines
Deal found 12/11$532
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:09 amMLI - SEA
1 stop9h 20mAmerican Airlines
Tue 12/302:52 pmSEA - MLI
1 stop6h 48mAmerican Airlines
Deal found 12/11$573
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/221:00 pmMLI - SEA
1 stop7h 46mUnited Airlines
Mon 12/2911:59 pmSEA - MLI
1 stop8h 13mUnited Airlines
Deal found 12/10$581
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/221:00 pmMLI - SEA
1 stop7h 46mUnited Airlines
Tue 12/307:12 pmSEA - MLI
2 stops13h 00mUnited Airlines
Deal found 12/10$586
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Tue 12/231:00 pmMLI - SEA
2 stops12h 08mUnited Airlines
Tue 12/307:12 pmSEA - MLI
2 stops13h 00mUnited Airlines
Deal found 12/10$591
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:50 amMLI - SEA
1 stop10h 17mDelta
Mon 12/296:15 amSEA - MLI
1 stop8h 01mDelta
Deal found 12/10$594
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:52 amMLI - SEA
1 stop8h 59mAmerican Airlines
Sun 12/2112:59 amSEA - MLI
1 stop7h 40mAmerican Airlines
Deal found 12/11$599
This American Airlines deal was found by Cheapflights users on 12/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:09 amMLI - SEA
1 stop10h 03mAmerican Airlines
Tue 12/302:52 pmSEA - MLI
1 stop6h 48mAmerican Airlines
Deal found 12/11$601
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/123:56 pmMLI - SEA
2 stops10h 54mUnited Airlines
Wed 12/177:00 amSEA - MLI
1 stop8h 05mUnited Airlines
Deal found 12/11$603

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$262
(Kiwi.com)

One-way from

$117
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$631
Provider with most accurate pricing for Moline Quad-City-Seattle/Tacoma Intl flight deals.
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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
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 2025.
Use the filters below to find and compare flights from Moline to Seattle that are best for you.

Fly from

Moline

Fly to

Seattle

Route

Depart

Return

Price

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 1/10

10:47 am-6:26 pm

2 stops9h 39m

Seattle/Tacoma Intl

Sat 1/17

9:00 am-9:36 pm

2 stops10h 36m

$285

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 1/21

8:46 am-1:57 pm

1 stop7h 11m

Seattle/Tacoma Intl

Sat 1/24

7:00 am-3:09 pm

1 stop6h 09m

$289

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 5/1

3:52 pm-10:42 pm

1 stop8h 50m

Seattle/Tacoma Intl

Tue 5/5

8:30 am-7:04 pm

2 stops8h 34m

$294

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 3/4

11:05 am-7:31 pm

1 stop10h 26m

Seattle/Tacoma Intl

Tue 3/10

11:57 pm-10:36 am

1 stop8h 39m

$309

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 1/9

6:30 am-11:32 am

1 stop7h 02m

Seattle/Tacoma Intl

Wed 1/14

7:00 am-3:09 pm

1 stop6h 09m

$309

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 1/9

6:30 am-11:32 am

1 stop7h 02m

Seattle/Tacoma Intl

Sat 1/17

10:58 am-9:36 pm

1 stop8h 38m

$365

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 1/8

8:46 am-1:57 pm

1 stop7h 11m

Seattle/Tacoma Intl

Sat 1/17

10:58 am-9:36 pm

1 stop8h 38m

$365

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 1/15

9:26 pm-9:36 am

1 stop14h 10m

$117

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Thu 1/22

9:26 pm-9:36 am

1 stop14h 10m

$153

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Fri 1/23

11:28 am-10:20 pm

1 stop12h 52m

$222

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 14 results
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 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 Moline-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Moline-Seattle flight deals on Cheapflights vs. eDreams >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 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 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 December 5, 2025.

The best time to book flights from Moline to Seattle is 78 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 $190). Flying from Moline to Seattle in June is currently the most expensive (average of $381). 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.

What is the cheapest time of day to fly from MLI to SEA?

Find hourly flight availability from Moline to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

When flying from Moline to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 60% versus a flight at noon.

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 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, United Airlines, and American 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
11,431 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

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
11,431 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

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
9,095 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

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
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

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 39m. United Airlines provides one of the quickest options available for as low as $285. There are 1609 mi between Moline and Seattle.

  • 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 $258 on this airline. Additional options worth looking into are United Airlines and Alaska Airlines, starting at $343 and $428 round-trip. You may be able to fly from Moline to Seattle for 44% 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 $190). Flying from Moline to Seattle in June is currently the most expensive (average of $381). 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
Tukwila
Kent
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

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Alternative routes for Moline to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$258Average$442FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$343Average$495FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$428Average$588FlexibilityNo cancel feeOn-time75%

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