MLI - SEA

$185 Find Cheap Flights from Moline to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Moline to Seattle departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Moline to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Moline to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$309
Typical prices: $358-$511
American Airlines
Mon 4/6Wed 4/15
MLI - SEA • 1 stop
Cheapest one-way
$185
Multiple Airlines
Sun 5/31
MLI - SEA • 1 stop
Top airlines
American Airlines
Cheapest • from $309 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Moline and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Dallas (DFW)
Cheapest • Avg $498 (round-trip)
Denver (DEN)
Shortest trip • 7h 30m (one-way)
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 5% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 16% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Moline to Seattle (MLI-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Moline to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Moline to Seattle

Mon, Apr 6 - Wed, Apr 15
American Airlines Logo
7:09 pm - 12:24 am
MLI
-
SEA
7h 15m
1 stop
American Airlines Logo
6:00 am - 3:18 pm
SEA
-
MLI
7h 18m
1 stop
$309American Airlines
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
6:30 am - 11:48 am
MLI
-
SEA
7h 18m
1 stop
United Airlines Logo
5:00 am - 5:06 pm
SEA
-
MLI
10h 06m
2 stops
$314United Airlines
Tue, Mar 10 - Sat, Mar 14
United Airlines Logo
6:30 am - 11:49 am
MLI
-
SEA
7h 19m
1 stop
United Airlines Logo
11:59 pm - 10:09 am
SEA
-
MLI
8h 10m
1 stop
$359United Airlines
Tue, Mar 10 - Sat, Mar 14
United Airlines Logo
10:46 am - 7:28 pm
MLI
-
SEA
10h 42m
2 stops
United Airlines Logo
11:59 pm - 10:09 am
SEA
-
MLI
8h 10m
1 stop
$364United Airlines
Sat, May 30 - Sat, Jun 6
United Airlines Logo
6:34 pm - 11:59 pm
MLI
-
SEA
7h 25m
1 stop
United Airlines Logo
7:00 am - 5:52 pm
SEA
-
MLI
8h 52m
1 stop
$375United Airlines
Sat, May 23 - Sun, May 31
United Airlines Logo
6:34 pm - 11:59 pm
MLI
-
SEA
7h 25m
1 stop
United Airlines Logo
11:52 pm - 9:59 am
SEA
-
MLI
8h 07m
1 stop
$384United Airlines
Sat, May 23 - Sun, May 31
United Airlines Logo
1:15 pm - 9:59 pm
MLI
-
SEA
10h 44m
2 stops
United Airlines Logo
11:52 pm - 9:59 am
SEA
-
MLI
8h 07m
1 stop
$390United Airlines
Thu, May 28 - Fri, Jun 5
United Airlines Logo
5:00 am - 9:40 am
MLI
-
SEA
6h 40m
1 stop
United Airlines Logo
10:40 pm - 9:59 am
SEA
-
MLI
9h 19m
1 stop
$399United Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
8:30 am - 8:53 pm
MLI
-
SEA
14h 23m
2 stops
United Airlines Logo
7:00 am - 5:06 pm
SEA
-
MLI
8h 06m
1 stop
$404United Airlines
Sat, Apr 11 - Sat, Apr 18
American Airlines Logo
12:51 pm - 12:36 am
MLI
-
SEA
13h 45m
1 stop
American Airlines Logo
11:33 pm - 6:07 pm
SEA
-
MLI
16h 34m
1 stop
$405American Airlines
Booking Insights

KAYAK's insights & trends for Moline to Seattle flights

Get data-powered insights and trends into flights from Moline to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Moline to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Moline to Seattle departing in April.

What is the cheapest month to fly from Moline to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Moline to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Moline to Seattle is April, where tickets cost $398 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $588 and $587 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Moline to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Moline to Seattle, you should book around 2 weeks before departure, which saves you about 5% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$185
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 24% increase in price.
Flight from Moline to Seattle

When to book flights from Moline to Seattle

Are your dates flexible? Find out the best times to travel from Moline to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Moline to Seattle

  • What is the cheapest flight from Moline to Seattle?

    In the last 3 days, the lowest price for a flight from Moline to Seattle was $185 for a one-way ticket and $309 for a round-trip.

  • Do I need a passport to fly between Moline and Seattle?

    No

  • Which airports will I be using when flying from Moline to Seattle?

    Moline airport is called Moline Quad-City and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Moline to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Moline to Seattle?

    Star Alliance, and oneworld are the airline alliances operating flights between Moline and Seattle, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Moline to Seattle, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Moline to Seattle are Alaska Airlines and United Airlines. With an average price for the route of $588 and an overall rating of 8.0, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $496 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Moline to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Moline to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Moline to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Moline is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Moline to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Moline with another airline. Booking your flights between Moline and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Moline to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Moline up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Moline to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Moline to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Moline to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11959 reviews
7.1Food
7.0Entertainment
7.8Comfort
8.1Boarding
8.5Crew
Airline reviews

Morbidly obese dude took half my seat. Sore shoulders back from being squeezed. Shame on the airline for not making this guy purchase two seats

4.0 OkayLawrence, Feb 2026
DFW - SEA
Read more Alaska Airlines reviews

Morbidly obese dude took half my seat. Sore shoulders back from being squeezed. Shame on the airline for not making this guy purchase two seats

Flight was cancelled last minute, had to change and buy another ticket to united airlines, made it 10 minutes late to my international flight and couldn’t get any reimbursement what so ever due to “Weather”, yet all other airlines except south west were running Just fine. Every single time I fly Alaska, it’s a huge delay or cancellation. My hope is that more people avoid this airlines all together until they actually improve.

Nice crew, healthy snacks and drinks available. Flight to Seattle was short and comfortable.

I like flying Alaska Airlines. I think the staff are happy, the plane is comfortable, the entertainment reasonable, the food acceptable.

The flight was good, comfort in the seat was good, drinks were good, entertainment had a large selection to choose from. I really liked the multi function of the tray tables, I hadn't seen that before. My only downside was that I wasn't able to have your snacks. Please have a wheat free option for a snack.

The flight was a disaster. It is a 40 min flight and we waited to the tarmac for well over 90 min with no updates, while the crew tried to reconcile the seating chart of people on the plane to what their phones showed. Terrible communication, systems and experience. I would do almost anything to avoid taking another Alaska flight after the experience last night.

I had a medical incident on the flight. The crew was very responsive and kind, making the situation as "good" as possible. (I believe they were overly cautious, but it's understandable.) My only complaint is that the seats are too small. I was so cramped for so many hours, that it exacerbated my medical incident. I will probably not be able to fly in coach anymore, and cannot afford otherwise, so it looks like flying is a thing of the past for me.

Experience overall was great, we didn’t land upside down like a Delta plane once did. The entertainment section didn’t apply for me, but I put excellent I think anyway.

Attentive, caring. Loved the communication in the app even before boarding and while on plane from pilots.

The agent changed my seat and upgraded me free. The flights are ALWAYS delayed. We sat there almost an hour while the plane was held for 4 passengers. I was then unable to make my connecting flight. This is why I dont fly alaska unless there are no more flights with delta

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

No Snacks or Entertainment. The flight was short, snacks should still be given.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

Everything you need to know for your flight from Moline to Seattle

Information on your arrival and departure airports