MLI - SEA

$144 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 8/16. 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
$322
Typical prices: $488-$366
Multiple Airlines
Sun 9/13Wed 9/16
MLI - SEA • 1 stop
Cheapest one-way
$144
Typical prices: $276-$330
Multiple Airlines
Sun 8/16
MLI - SEA • 1 stop
Top airlines
Cheapest • from $349 (round-trip)
Best reviews • 7.9 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
Cheapest • Avg $519 (round-trip)
Shortest trip • 6h 25m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 6% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 18% price drop
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

Sun, Sep 13 - Wed, Sep 16
Multiple Airlines Logo
1:13 pm - 10:00 am
MLI
-
SEA
22h 47m
1 stop
Multiple Airlines Logo
9:16 pm - 12:23 pm
SEA
-
MLI
13h 07m
1 stop
$322Multiple Airlines
Fri, Sep 11 - Wed, Sep 16
Delta Logo
5:00 pm - 12:03 am
MLI
-
SEA
9h 03m
1 stop
Delta Logo
11:59 pm - 10:23 am
SEA
-
MLI
8h 24m
1 stop
$349Delta
Wed, Oct 28 - Wed, Nov 4
Delta Logo
11:00 am - 10:05 pm
MLI
-
SEA
13h 05m
2 stops
Delta Logo
6:00 am - 4:22 pm
SEA
-
MLI
8h 22m
1 stop
$354Delta
Fri, Aug 28 - Sun, Aug 30
Delta Logo
11:08 am - 10:05 pm
MLI
-
SEA
12h 57m
2 stops
Delta Logo
11:59 pm - 4:25 pm
SEA
-
MLI
14h 26m
2 stops
$359Delta
Wed, Oct 28 - Wed, Nov 4
Delta Logo
11:00 am - 10:05 pm
MLI
-
SEA
13h 05m
2 stops
Delta Logo
6:00 am - 4:22 pm
SEA
-
MLI
8h 22m
1 stop
$364Delta
Thu, Sep 10 - Wed, Sep 16
Multiple Airlines Logo
1:13 pm - 5:45 pm
MLI
-
SEA
30h 32m
1 stop
Multiple Airlines Logo
9:16 pm - 12:23 pm
SEA
-
MLI
13h 07m
1 stop
$366Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Delta Logo
5:00 pm - 12:03 am
MLI
-
SEA
9h 03m
1 stop
Delta Logo
6:00 am - 4:22 pm
SEA
-
MLI
8h 22m
1 stop
$374Delta
Thu, Jun 25 - Sat, Jul 4
American Airlines Logo
6:52 pm - 12:41 am
MLI
-
SEA
7h 49m
1 stop
American Airlines Logo
5:05 am - 4:14 pm
SEA
-
MLI
9h 09m
1 stop
$389American Airlines
Wed, Oct 28 - Wed, Nov 4
Delta Logo
5:55 am - 4:35 pm
MLI
-
SEA
12h 40m
2 stops
Delta Logo
9:40 am - 10:30 pm
SEA
-
MLI
10h 50m
2 stops
$399Delta
Sun, Sep 13 - Wed, Sep 16
Multiple Airlines Logo
1:13 pm - 10:00 am
MLI
-
SEA
22h 47m
1 stop
Multiple Airlines Logo
11:15 am - 12:23 pm
SEA
-
MLI
23h 08m
2 stops
$401Multiple 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 September.

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 $386 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $563 and $555 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 6% 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$144
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 19% 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 5 days, the lowest price for a flight from Moline to Seattle was $144 for a one-way ticket and $322 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?

    oneworld, and Star Alliance are the airline alliances operating flights between Moline and Seattle, with oneworld 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 $579 and an overall rating of 7.9, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $476 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.
7.9
Alaska AirlinesOverall score based on 12470 reviews
7.0Entertainment
7.8Comfort
8.5Crew
7.1Food
8.1Boarding
Airline reviews

Other than delaying take off by an hour, the flight was smooth. Crew were kind and supportive, and made sure we were always considered as a priority.

10.0 ExcellentVenge, Jun 2026
EWR - SEA
Read more Alaska Airlines reviews

Other than delaying take off by an hour, the flight was smooth. Crew were kind and supportive, and made sure we were always considered as a priority.

Flight was on time. My pre-ordered meal came as expected.

Flight was delayed and we were left in the plane with planed turned off, took so long to get to destination and luggages were lost. Such a hectic travel

The flight was delayed out of BIL so many times that I was not able to make my connection. I was rebooked for the next day, losing a full day of my trip. I still have not been compensated as promised.

Flight was delayed, but not be a lot. Crew at the departure gate was friendly. Flight was filled with turbulence, enough to concern my husband. Snacks were delivered to rows in front of us but attendant stopped handing out snacks when she got to our row. Team was efficient but lackadaisical. Usually on board crews are more animated and friendly. No onboard entertainment and no seatback video screens for a six hour flight. Landing was a bit rough. We were told the wrong turnstile for luggage.

2 hour delay. Then some luggage was unloaded at 1baggage claim #7 then without notice the baggage claim was changed to #12. No one informed the passengers they were changing baggage claim turnstile. Several of us waited for 90 minutes after the 1st turnstile stopped and changed to other flights luggage.

Many gate changes in Seattle and mechanical problems on plane which resulted in a new gate change. Both flights, from Seattle to Detroit and Seattle to Eugene resulted in a lot of walking and tram taking.

No negatives. Crew was great, flight was on time and there were no crazy passengers. 🤩

I had ordered breakfast several days prior to the flight. 1) we did not rreceive our breakfast and crew knew nothing about it! We left TPA at 8 a.m. but drink cart did not appear until 10:30 a.m. and did not appear a second time either. Was unaware that Alaskan Air offers no music, flight aware, or movies.

I flew standby with my two children and completely forgot it was Memorial Day weekend. We tried to fly from PDX to YVR. Unfortunately, after four attempts, we gave up and tried SEA instead after the holiday. The ground crew was very helpful, checking us in and accommodating us when we were finally able to get on a flight. The sad part was that they accidentally loaded one of my suitcases on the Vancouver flight without us during one of our attempts to get on a flight, even though it had a standby tag on it. I filed a report with baggage services, and thankfully, it was returned to PDX the following day. AS was in touch with us and updated us on the process of returning the luggage to the USA.

Boarded early; and arrived home 40 mins early. After a long flight, it’s nice to be back home early. These flights have no amenities; no snacks. So need to bring your own

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

American Airlines II: Delay Boogaloo. Multiple gate changes, delays, boarded and then MORE delays. I hate to say this won’t matter, but posting stuff about major corporations in 2026 is a post-modern “scream into the void.” Was multiple hours late coming home, so there you go.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

I almost missed my flight and they helped me out enormously

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Typical AA - late by 90+ mn. Gate changed twice... Changed the departure time 6 times No explanation, no communication on reasons for delay I travel with AA twice a year... and it is consistently very poor.. I will continue to use AA only when i have to.

The gate got changed several times and the flight was delayed over an hour. Awful experience

American continues to decline in their customer service and its beyond disappointing.

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

Information on your arrival and departure airports