MLI - SEA

$225 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 8/10. 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
$316
Typical prices: $313-$567
Multiple Airlines
Sun 8/23Wed 8/26
MLI - SEA • 1 stop
Cheapest one-way
$225
Typical prices: $312-$342
Delta
Mon 8/10
MLI - SEA • 1 stop
Top airlines
Cheapest • from $349 (round-trip)
Best reviews • 7.4 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 $511 (round-trip)
Shortest trip • 6h 25m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% 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, Aug 23 - Wed, Aug 26
Multiple Airlines Logo
1:06 pm - 10:39 am
MLI
-
SEA
23h 33m
1 stop
Multiple Airlines Logo
8:53 pm - 12:16 pm
SEA
-
MLI
13h 23m
1 stop
$316Multiple Airlines
Sun, Aug 23 - Wed, Aug 26
Multiple Airlines Logo
1:06 pm - 10:39 am
MLI
-
SEA
23h 33m
1 stop
Multiple Airlines Logo
11:54 am - 12:16 pm
SEA
-
MLI
22h 22m
2 stops
$343Multiple Airlines
Wed, Sep 16 - Sat, Sep 19
Delta Logo
5:16 pm - 11:59 pm
MLI
-
SEA
8h 43m
1 stop
Delta Logo
11:59 pm - 10:23 am
SEA
-
MLI
8h 24m
1 stop
$349Delta
Tue, Sep 1 - Tue, Sep 8
Delta Logo
6:00 am - 6:44 pm
MLI
-
SEA
14h 44m
2 stops
Delta Logo
10:59 pm - 10:23 am
SEA
-
MLI
9h 24m
1 stop
$354Delta
Wed, Oct 28 - Wed, Nov 4
Delta Logo
11:00 am - 10:05 pm
MLI
-
SEA
13h 05m
2 stops
Delta Logo
11:53 pm - 4:22 pm
SEA
-
MLI
14h 29m
2 stops
$359Delta
Sun, Sep 20 - Wed, Sep 23
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
$373Multiple Airlines
Wed, Sep 30 - Sat, Oct 3
United Airlines Logo
10:49 am - 4:06 pm
MLI
-
SEA
7h 17m
1 stop
United Airlines Logo
11:14 pm - 12:37 pm
SEA
-
MLI
11h 23m
2 stops
$374United Airlines
Fri, Sep 18 - Wed, Sep 23
United Airlines Logo
2:08 pm - 7:15 pm
MLI
-
SEA
7h 07m
1 stop
United Airlines Logo
8:40 am - 9:00 pm
SEA
-
MLI
10h 20m
2 stops
$377United Airlines
Tue, Jul 14 - Wed, Jul 22
American Airlines Logo
6:50 pm - 12:52 am
MLI
-
SEA
8h 02m
1 stop
American Airlines Logo
2:09 pm - 12:41 am
SEA
-
MLI
8h 32m
1 stop
$384American Airlines
Thu, Aug 27 - Sun, Aug 30
Delta Logo
11:08 am - 10:05 pm
MLI
-
SEA
12h 57m
2 stops
Delta Logo
11:59 pm - 10:25 am
SEA
-
MLI
8h 26m
1 stop
$389Delta
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 August.

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 July and December, where the average cost of round-trip tickets is $570 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$225
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 9% 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 $225 for a one-way ticket and $316 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, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Moline to Seattle are United Airlines and American Airlines. With an average price for the route of $477 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $504 and an overall rating of 7.1.

  • 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 airlines flying 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.
7.4
United AirlinesOverall score based on 9896 reviews
7.7Boarding
6.6Food
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

10.0 ExcellentSusan, Mar 2026
ORD - SEA
Read more United Airlines reviews

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

leg space better than expected. two washrooms for one plane isn't enough.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

Everything was fantastic. Modern plane. All the amenities! Although the paid snacks and meals are pure robbery. Like i understand airlines need to make money, but 11$ USD for an overnight oats with some nuts in it and barely any pieces of apple.... Highway robbery

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

Our flight was delayed many times throughout the day. The final delay was about 8 hours. I spent time in line to speak to someone at their understaffed desk, and also spent time waiting online and then chatting with a service rep. None of the United employees were any help at all. I desperately wanted to go get rest and possibly re-book my trip but I was denied any compensation or voucher for a hotel. I was repeatedly told it was not United's fault and therefore they had no compensation to offer. Overall, a cold and callous experience.

Flight crew and pilots did great. Flight way delayed due to a part needing replacement. Based on what the pilot indicated- the maintenance crew could’ve resolved this more efficiently than replacing whole part- and taken less time

The most cramped seating I’ve ever experienced, (including budget airlines) with no food available for purchase on a nearly 6 hour flight.

Flight attendant was on her phone the whole time, couldnt even get a water refill. It was an old plane, no entertainment no Wi-Fi.

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

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.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Very smooth for one of the busiest travel days of the year and the crew was great.

Boarded late. Missed first landing attempt, landed almost an hour late and missed connecting flight.

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

Information on your arrival and departure airports