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Cheap flights from Moline to Seattle from $309

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Moline to Seattle departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Moline to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:20 pm - 10:37 pm
MLI
-
SEA
9h 17m
1 stop
United Airlines Logo
11:59 pm - 9:58 am
SEA
-
MLI
7h 59m
1 stop
$309United Airlines
Wed, Apr 15 - Mon, Apr 20
United Airlines Logo
3:20 pm - 10:37 pm
MLI
-
SEA
9h 17m
1 stop
United Airlines Logo
7:37 pm - 9:58 am
SEA
-
MLI
12h 21m
2 stops
$314United Airlines
Wed, Apr 15 - Mon, Apr 20
American Airlines Logo
6:00 am - 1:04 pm
MLI
-
SEA
9h 04m
1 stop
American Airlines Logo
1:37 pm - 11:37 pm
SEA
-
MLI
8h 00m
1 stop
$334American Airlines
Wed, Feb 11 - Tue, Feb 17
United Airlines Logo
12:21 pm - 9:12 pm
MLI
-
SEA
10h 51m
2 stops
United Airlines Logo
12:55 pm - 8:54 pm
SEA
-
MLI
5h 59m
1 stop
$339United Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
1:36 pm - 11:13 pm
MLI
-
SEA
11h 37m
1 stop
American Airlines Logo
12:07 am - 6:32 pm
SEA
-
MLI
16h 25m
1 stop
$345American Airlines
Sun, Mar 8 - Tue, Mar 17
American Airlines Logo
7:32 am - 1:21 pm
MLI
-
SEA
7h 49m
1 stop
American Airlines Logo
1:37 pm - 11:37 pm
SEA
-
MLI
8h 00m
1 stop
$359American Airlines
Wed, Feb 11 - Tue, Feb 17
United Airlines Logo
5:30 pm - 10:42 pm
MLI
-
SEA
7h 12m
1 stop
United Airlines Logo
2:23 pm - 10:45 pm
SEA
-
MLI
6h 22m
1 stop
$361United Airlines
Wed, May 6 - Thu, May 14
United Airlines Logo
8:30 am - 6:00 pm
MLI
-
SEA
11h 30m
2 stops
United Airlines Logo
11:59 pm - 9:58 am
SEA
-
MLI
7h 59m
1 stop
$366United Airlines
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
7:09 pm - 9:54 am
MLI
-
SEA
16h 45m
1 stop
American Airlines Logo
1:29 pm - 11:46 pm
SEA
-
MLI
8h 17m
1 stop
$371American Airlines
Mon, Apr 6 - Wed, Apr 15
American Airlines Logo
6:35 pm - 9:54 am
MLI
-
SEA
17h 19m
1 stop
American Airlines Logo
11:26 pm - 6:01 pm
SEA
-
MLI
16h 35m
1 stop
$375American Airlines
Mon, Apr 27 - Fri, May 1

United Airlines flights from Moline to Seattle

Our best United Airlines deals on Moline to Seattle flight tickets
United Airlines
Apr 15
MLI3:20 pmMoline Quad-City
9h 17m
1 stop
SEA10:37 pmSeattle/Tacoma Intl
Apr 19
SEA11:59 pmSeattle/Tacoma Intl
7h 59m
1 stop
MLI9:58 amMoline Quad-City
$309
United Airlines
Apr 15
MLI3:20 pmMoline Quad-City
9h 17m
1 stop
SEA10:37 pmSeattle/Tacoma Intl
Apr 20
SEA7:37 pmSeattle/Tacoma Intl
12h 21m
2 stops
MLI9:58 amMoline Quad-City
$314
United Airlines
Feb 14
MLI12:21 pmMoline Quad-City
10h 51m
2 stops
SEA9:12 pmSeattle/Tacoma Intl
Feb 21
SEA12:55 pmSeattle/Tacoma Intl
5h 59m
1 stop
MLI8:54 pmMoline Quad-City
$339

Alaska Airlines flights from Moline to Seattle

Our best Alaska Airlines deals on Moline to Seattle flight tickets
Alaska Airlines
Apr 27
MLI6:35 pmMoline Quad-City
6h 54m
1 stop
SEA11:29 pmSeattle/Tacoma Intl
May 1
SEA4:42 pmSeattle/Tacoma Intl
23h 19m
2 stops
MLI6:01 pmMoline Quad-City
$455
Alaska Airlines
May 16
MLI6:00 amMoline Quad-City
14h 15m
2 stops
SEA6:15 pmSeattle/Tacoma Intl
May 22
SEA12:29 amSeattle/Tacoma Intl
8h 20m
1 stop
MLI10:49 amMoline Quad-City
$500
Alaska Airlines
Mar 5
MLI6:00 amMoline Quad-City
11h 16m
2 stops
SEA3:16 pmSeattle/Tacoma Intl
Mar 9
SEA6:59 pmSeattle/Tacoma Intl
21h 36m
2 stops
MLI6:35 pmMoline Quad-City
$505

momondo 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, momondo users made 832,500 searches. Data last updated January 28, 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

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 4/15

3:20 pm-10:37 pm

1 stop9h 17m

Seattle/Tacoma Intl

Mon 4/20

11:59 pm-9:58 am

1 stop7h 59m

$309

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 4/15

3:20 pm-10:37 pm

1 stop9h 17m

Seattle/Tacoma Intl

Mon 4/20

7:37 pm-9:58 am

2 stops12h 21m

$314

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 2/11

6:00 am-1:04 pm

1 stop9h 04m

Seattle/Tacoma Intl

Tue 2/17

1:37 pm-11:37 pm

1 stop8h 00m

$334

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sat 2/14

12:21 pm-9:12 pm

2 stops10h 51m

Seattle/Tacoma Intl

Sat 2/21

12:55 pm-8:54 pm

1 stop5h 59m

$339

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Sun 3/8

1:36 pm-11:13 pm

1 stop11h 37m

Seattle/Tacoma Intl

Tue 3/17

12:07 am-6:32 pm

1 stop16h 25m

$345

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 2/11

7:32 am-1:21 pm

1 stop7h 49m

Seattle/Tacoma Intl

Tue 2/17

1:37 pm-11:37 pm

1 stop8h 00m

$359

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 5/6

5:30 pm-10:42 pm

1 stop7h 12m

Seattle/Tacoma Intl

Thu 5/14

2:23 pm-10:45 pm

1 stop6h 22m

$361

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Wed 4/15

8:30 am-6:00 pm

2 stops11h 30m

Seattle/Tacoma Intl

Sun 4/19

11:59 pm-9:58 am

1 stop7h 59m

$366

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Mon 4/6

7:09 pm-9:54 am

1 stop16h 45m

Seattle/Tacoma Intl

Wed 4/15

1:29 pm-11:46 pm

1 stop8h 17m

$371

MolineSeattle

MLI - SEA

MLISEA

Moline Quad-City

Mon 4/27

6:35 pm-9:54 am

1 stop17h 19m

Seattle/Tacoma Intl

Fri 5/1

11:26 pm-6:01 pm

1 stop16h 35m

$375

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Seattle from

How to get the cheapest flight ticket from Moline to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, April is the cheapest month to fly from Moline to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $364. If you don’t want to visit Seattle in April, then you should wait until February to fly from Moline, when ticket prices are also cheap, with an average price of $373.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Moline when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $474 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Moline for as low as $383 on momondo.

How have Moline to Seattle flight prices changed over time?

When to book flights from Moline to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Moline to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Moline to Seattle (MLI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Moline to Seattle

Fastest flight time

6h 47m

Direct flights

None
The fastest flight from Moline to Seattle takes 6h 47m
There are no direct flights from Moline to Seattle. There are no popular flight routes from Moline to Seattle.
Search flight deals

  • How far is Moline Quad-City to Seattle/Tacoma Intl by plane?

    A flight from Moline Quad-City to Seattle/Tacoma Intl will travel around 1608.9 mi. Typically, this will take 6h 47m by plane in normal conditions.

  • When did momondo last update prices for flights from Moline Quad-City Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Moline Quad-City Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Moline Quad-City Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Moline Quad-City Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Moline Quad-City Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Moline to Seattle?

Best airlines flying from Moline to Seattle

Compare and see reviews for airlines that fly from Moline to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
United AirlinesPriceFrom $331Free CancellationRating
7.4
9,208 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $428Free CancellationRating
8.0
11,800 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Cle Elum
Tukwila
Lakewood
Federal Way
Centralia
Westport
Kirkland
Fife
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Moline to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Moline to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Moline to Seattle with flexible booking policies on momondo?

Flights from Moline to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Moline to Seattle?

Once all potential Moline to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Moline to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Moline. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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