SEA - FLG

$210 Find Cheap Flights from Seattle to Flagstaff

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Flagstaff departing on 3/29. 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 Flagstaff

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Flagstaff, 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 Seattle to Flagstaff, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$436
Overall average: $485
American Airlines
Tue 3/10Tue 3/17
SEA - FLG • 1 stop
Cheapest one-way
$210
American Airlines
Sun 3/29
SEA - FLG • 1 stop
When to travel
August
Cheapest • 18% price drop
March
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 Flagstaff!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Flagstaff (SEA-FLG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Flagstaff 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 Seattle to Flagstaff

Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
6:22 pm - 11:07 pm
SEA
-
FLG
4h 45m
1 stop
American Airlines Logo
6:00 am - 1:52 pm
FLG
-
SEA
7h 52m
1 stop
$436American Airlines
Mon, Apr 6 - Wed, Apr 8
American Airlines Logo
6:22 pm - 11:07 pm
SEA
-
FLG
4h 45m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$466American Airlines
Wed, Apr 1 - Tue, Apr 7
American Airlines Logo
6:22 pm - 11:07 pm
SEA
-
FLG
4h 45m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$486American Airlines
Mon, Apr 6 - Thu, Apr 9
American Airlines Logo
6:22 pm - 11:07 pm
SEA
-
FLG
4h 45m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$496American Airlines
Mon, Apr 13 - Thu, Apr 16
American Airlines Logo
11:11 am - 6:42 pm
SEA
-
FLG
7h 31m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$516American Airlines
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
6:22 pm - 11:07 pm
SEA
-
FLG
4h 45m
1 stop
American Airlines Logo
12:21 pm - 8:28 pm
FLG
-
SEA
8h 07m
1 stop
$536American Airlines
Sat, Apr 25 - Mon, Apr 27
American Airlines Logo
2:57 pm - 10:57 pm
SEA
-
FLG
8h 00m
1 stop
American Airlines Logo
7:52 pm - 10:41 am
FLG
-
SEA
14h 49m
1 stop
$537American Airlines
Sun, Apr 5 - Wed, Apr 8
American Airlines Logo
6:22 pm - 11:07 pm
SEA
-
FLG
4h 45m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$551American Airlines
Thu, Apr 9 - Wed, Apr 15
American Airlines Logo
6:30 am - 11:11 am
SEA
-
FLG
4h 41m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$556American Airlines
Wed, Apr 8 - Tue, Apr 21
American Airlines Logo
11:11 am - 4:31 pm
SEA
-
FLG
5h 20m
1 stop
American Airlines Logo
6:21 am - 1:54 pm
FLG
-
SEA
7h 33m
1 stop
$566American Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Flagstaff flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Flagstaff, 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 Seattle to Flagstaff is August, where tickets cost $427 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $665 and $610 respectively.

Good to know

Low seasonNovember
Cheapest flight$210
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Seattle to Flagstaff

When to book flights from Seattle to Flagstaff

Are your dates flexible? Find out the best times to travel from Seattle to Flagstaff 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 Seattle to Flagstaff

  • What is the cheapest flight from Seattle to Flagstaff?

    In the last 3 days, the lowest price for a flight from Seattle to Flagstaff was $210 for a one-way ticket and $436 for a round-trip.

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

    No

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

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

  • Which airline alliances offer flights from Seattle to Flagstaff?

    oneworld is the only airline alliance operating flights between Seattle and Flagstaff.

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

    The two airlines most popular with KAYAK users for flights from Seattle to Flagstaff are Alaska Airlines and American Airlines. With an average price for the route of $433 and an overall rating of 8.0, Alaska Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $498 and an overall rating of 7.2.

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

    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 Seattle to Flagstaff.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Flagstaff from Seattle 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 Seattle to Flagstaff?

    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 Flagstaff with an airline and back to Seattle with another airline. Booking your flights between Seattle and FLG 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 Seattle to Flagstaff?

    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 Flagstaff from Seattle 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 Seattle to Flagstaff

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Flagstaff. 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 Seattle to Flagstaff? 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 11882 reviews
8.1Boarding
7.0Entertainment
7.1Food
7.8Comfort
8.5Crew
Airline reviews

I paid for the WiFi and it didn’t work during the whole flight

2.0 MediocreGloria, Feb 2026
SEA - SNA
Read more Alaska Airlines reviews

I paid for the WiFi and it didn’t work during the whole flight

Impressed that Alaska Air(for our domestic flight) transferred our checked bags to EVA (for our international flights) so that we didn't have to handle them, & we just picked them up at our final destination.

I enjoyed the movie selection. I’m glad I saw ahead of time to bring personal ear buds. I don’t normally have them with me and airlines used to give them out.

man & woman back side flight attendant was very rude. I live in Seattle. I use a lot of time Alaska flights. I always like them for fact that my favorite airline employees very rude. It’s disappointing. .

Great experience, staff and crew were very professional, friendly and helpful!

I think Alaska should start including free meals on these longer trips.

Wheelchair assistance was excellent. I had a saver fare, but was given a seat in Premium. So very nice!! Extra legroom, complimentary beer. The flight crew was very nice and efficient. The gate agent in Seattle double checked to make sure I was able to board the plane all right while using my cane. I boarded first. So considerate! The flight was smooth, and right on time.

There is nothing critical to complain about but I would say the snacks are pretty bad Airline staff could be aggressive the way they move through the aisles and the plane I also got hustled for a small wallet size men bag and force the consolidated with my carry on item we're talking about a wallet size bag.

Departed on time and had an efficient boarding process. The inflight wifi was not working on one of the flights.

How can I review what was denied to me. Instead of offering to let me pay for the ticket I got booted of my flight with no way home and no choice but to purchase another ticket for 12 hours later. Filing a complaint with the DOT

The flight was fine, once we got underway. It was more than hour delayed

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

It would be nice to have some low carb options in the snacks.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

I love American. I’ll never fly anyone else if I can help it.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

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

Information on your arrival and departure airports