$62 Find Cheap Flights from Seattle to Phoenix

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 Phoenix departing on 4/15. 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 Phoenix

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Phoenix.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Phoenix.
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Everything you should know

Cheapest round-trip
$119
Typical prices: $377-$183
Frontier
Mon 4/13Wed 4/15
SEA - PHX • Non-stop
Cheapest non-stop
$127
Typical prices: $379-$186
Frontier, Alaska Airlines
Mon 4/13Wed 4/15
SEA - PHX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Alaska Airlines' Premium Class offers extra legroom.
Frontier's seats are uncomfortable and space is limited.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Cheapest • from $119 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Alaska Airlines, American Airlines and others. Average duration is 2h 56m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
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Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 44% compared to booking last minute.
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phoenix!
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Flight Deals

Cheap Flights from Seattle to Phoenix (SEA-PHX)

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

Mon, Apr 13 - Wed, Apr 15
Frontier Logo
10:09 pm - 1:09 am
SEA
-
PHX
3h 00mnonstop
Frontier Logo
6:50 am - 9:27 am
PHX
-
SEA
26h 37m
1 stop
$119Frontier
Sat, Apr 11 - Wed, Apr 15
Frontier Logo
7:56 pm - 10:53 pm
SEA
-
PHX
2h 57mnonstop
Frontier Logo
6:51 pm - 9:27 am
PHX
-
SEA
14h 36m
1 stop
$121Frontier
Fri, Apr 10 - Mon, Apr 20
Frontier Logo
10:04 pm - 1:04 am
SEA
-
PHX
3h 00mnonstop
Frontier Logo
9:24 pm - 9:27 am
PHX
-
SEA
12h 03m
1 stop
$124Frontier
Mon, Apr 13 - Wed, Apr 15
Multiple Airlines Logo
10:09 pm - 1:09 am
SEA
-
PHX
3h 00mnonstop
Multiple Airlines Logo
12:06 pm - 3:20 pm
PHX
-
SEA
3h 14mnonstop
$127Multiple Airlines
Mon, Apr 13 - Wed, Apr 15
Frontier Logo
10:09 pm - 1:09 am
SEA
-
PHX
3h 00mnonstop
Frontier Logo
1:29 pm - 6:42 pm
PHX
-
SEA
5h 13m
1 stop
$128Frontier
Tue, Apr 21 - Mon, Apr 27
Frontier Logo
10:57 am - 5:20 pm
SEA
-
PHX
6h 23m
1 stop
Frontier Logo
8:28 pm - 5:42 pm
PHX
-
SEA
21h 14m
1 stop
$130Frontier
Mon, Apr 13 - Tue, Apr 14
Multiple Airlines Logo
10:09 pm - 1:09 am
SEA
-
PHX
3h 00mnonstop
Multiple Airlines Logo
6:17 pm - 9:31 pm
PHX
-
SEA
3h 14mnonstop
$133Multiple Airlines
Sat, Apr 11 - Mon, Apr 20
Frontier Logo
7:56 pm - 10:53 pm
SEA
-
PHX
2h 57mnonstop
Frontier Logo
9:24 pm - 9:27 am
PHX
-
SEA
12h 03m
1 stop
$134Frontier
Mon, Apr 13 - Wed, Apr 15
Frontier Logo
10:09 pm - 1:09 am
SEA
-
PHX
3h 00mnonstop
Frontier Logo
12:50 pm - 9:27 am
PHX
-
SEA
20h 37m
1 stop
$135Frontier
Mon, Apr 13 - Tue, Apr 21
Frontier Logo
10:09 pm - 1:09 am
SEA
-
PHX
3h 00mnonstop
Frontier Logo
1:29 pm - 5:42 pm
PHX
-
SEA
28h 13m
1 stop
$137Frontier
Booking Insights

KAYAK's insights & trends for Seattle to Phoenix flights

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

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

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

What is the cheapest Seattle to Phoenix flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Seattle to Phoenix costs $94 on the route between Seattle (SEA) and Phoenix Sky Harbor Intl Airport (PHX). It is also the most popular route.

What’s the cheapest day of the week to fly from Seattle to Phoenix?

The average price of all round-trip flights from Seattle to Phoenix clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Phoenix on a Saturday and more expensive on a Sunday. On your return trip to Seattle, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Phoenix, 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 Phoenix is July, where tickets cost $177 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $284 and $272 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Phoenix, 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 Seattle to Phoenix, you should book around 4 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Phoenix

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines, American Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Stefanie Waldek

Stefanie Waldek

Expert on Delta and Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Laura Ratliff

Laura Ratliff

Expert on PHX

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Good to know

Cheapest flight$63
Flight from Seattle to Phoenix Sky Harbor Airport

When to book flights from Seattle to Phoenix

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

Flights from Seattle to Phoenix: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Seattle to Phoenix 
Verified travelerFlew with Frontier
SEA
-
PHX
Jun 2025
Wish I had known the seats were so uncomfortable. Wish I had known checked bags and carry on bags were 75 each. Wish I didn't have to wait so long in line with only one clerk working. Wish I had known we were going to have to take a bus from the gate to our airplane. Wish I had known the seat space is smaller than any other airline I have flown. I do not recommend Frontier.
Verified travelerFlew with Alaska Airlines
SEA
-
PHX
Jul 2024
Seattle is a busy gate. Find your gate first as connections may involve underground tram.

FAQs for booking flights from Seattle to Phoenix

  • What is the cheapest flight from Seattle to Phoenix?

    In the last 3 days, the lowest price for a flight from Seattle to Phoenix was $62 for a one-way ticket and $119 for a round-trip.

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

    Yes, you’ll need a passport to travel to Phoenix from Seattle.

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

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

  • Which airline alliances offer flights from Seattle to Phoenix?

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

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

    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 Phoenix.

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

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

    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 Phoenix with an airline and back to Seattle with another airline.

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

    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 Phoenix from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Seattle to Phoenix?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Phoenix.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Phoenix, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Phoenix

Monday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Tuesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Wednesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Thursday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Friday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Saturday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Sunday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

See more direct flights

Direct returns

Phoenix to Seattle/Tacoma Intl

Monday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Tuesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Wednesday

Alaska Airlines,American Airlines,Delta, +1 more

Alaska Airlines,American Airlines, +2 more

Thursday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Friday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Saturday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

Sunday

Alaska Airlines,American Airlines,Delta, +2 more

Alaska Airlines,American Airlines, +3 more

See more direct flights

Reviews of the top 5 airlines serving from Seattle to Phoenix

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Phoenix. 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 Phoenix? 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
SouthwestOverall score based on 4333 reviews
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

10.0 ExcellentGwen, Mar 2026
DAL - BNA
Read more Southwest reviews

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

I liked it better when you were truer to your roots Am paying more for less fun

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

Boarding was easy. The seats are small and fairly uncomfortable

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The final trip home wasn’t as bad as the trip there. Even with the paid upgrade the comfort level was mediocre at best.

I paid $129 to be upgraded to better seat only ti be completely ignored by flight attendants I think because I used the front restroom ???? I was dozing off and on but I was never once offered a beverage or snack but my seat mates were served numerous double vodkas. I want my money back. I tried to call Alaska Airlines complaints phone number and was told it was 2.5 hours to hold.

Don’t fly with Alaska if you have a layover in Seattle. Guaranteed to screw you over. We waited at terminal S3 &were >2 hours delayed(mechanical issues)and told to change terminals to a different plane that required riding 3 shuttles to get to new terminal N14. Then they delayed the flight even further and changed gates again. when I went to the customer service in terminal N, the manager turned me away without apologizing & refused to assist me but mandated I leave her alone as her shift is nearly finished and insisted I totake another 2 shuttles to terminal C so I can just talk to another service rep while dragging my family of 4/ kids in tow.

i canceled my flight from SEA to SFO, SNA to SEA and received full refund from Alaska Airlines. i am pleased with the customer service.

Departing flight for our weekend trip was cancelled due to weather which meant our return flight was useless. The whole thing was difficult to get support through but Alaska did recover and was able to reimburse us for the flights yesterday. For some reason, Kayak was not kept in the loop, adding to the confusion.

i canceled my return flight package with Alaska Airlines. Customer Service was excellent and assisted me to cancelled both of our reservations and returned the payment in full. that is excellent service and understanding and empathy of the customers' needs. i like Alaska Airlines and recommend AS to everyone.

Never got on because the airline sent the WRONG plane to take us on our first leg of the trip so we missed ALL connecting flights. No help available from anyone at the airline…

The crew inside the airport for Alaska was rude, lazy and incompetent

The flight was extremely smooth, and so was the landing. Great piloting.

Plane was clean, staff was professional and flight was on time. No built in tv was still ok, as programs were offered that could synch to smart phones.

I took seat 15A in anticipation of window seat, there is no window.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

The cabin temperature was nice and cool. The wifi was not working.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

As previously noted, this flight was great: departure was timely, the crew was friendly and attentive, and wifi connectivity was seamless. In particular, I appreciated that the flight attendant just told me to stow the laptop right before takeoff/landing, and trusted me to do so (which I did!).

Kayak botched up the booking, i had to call delta and fix. In the process Delta failed to honor my comfort plus seat assignment that i had previously.

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight attendant was friendly and efficient. The temperature was kept nice and cool. The plane was nice, but filthy. There were visible spills on my tray table. The gate agent was somewhat rude with her announcements and in speaking with other customers.

Great experience. Good dinner and service. FA's were very nice and attentive.

Mostly good. The WiFi wasn’t working so that was not great.

I like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

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.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

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

Information on your arrival and departure airports