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Cheap flights from Phoenix to Seattle from $53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix to Seattle departing on 12/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:15 pm - 4:28 pmPHX-SEA
3h 13mnonstop
Frontier Logo
2:54 pm - 12:44 amSEA-PHX
8h 50m1 stop
$97Frontier
Find Deal
Fri, Jan 16 - Sun, Jan 18
Frontier Logo
1:42 pm - 4:01 pmPHX-SEA
3h 19mnonstop
Frontier Logo
3:40 pm - 8:06 amSEA-PHX
15h 26m1 stop
$98Frontier
Find Deal
Fri, Dec 5 - Fri, Dec 12
Frontier Logo
9:58 am - 1:51 pmPHX-SEA
4h 53m1 stop
Frontier Logo
6:12 pm - 10:12 pmSEA-PHX
3h 00mnonstop
$100Frontier
Find Deal
Wed, Dec 24 - Sat, Jan 3
Frontier Logo
5:32 pm - 1:54 pmPHX-SEA
21h 22m1 stop
Frontier Logo
6:12 pm - 10:12 pmSEA-PHX
3h 00mnonstop
$101Frontier
Find Deal
Sat, Dec 20 - Sat, Jan 3
Frontier Logo
2:15 pm - 4:36 pmPHX-SEA
3h 21mnonstop
Frontier Logo
11:01 am - 9:26 pmSEA-PHX
9h 25m1 stop
$102Frontier
Find Deal
Sat, Dec 13 - Mon, Dec 15
Multiple Airlines Logo
3:00 pm - 5:17 pmPHX-SEA
3h 17mnonstop
Multiple Airlines Logo
8:05 pm - 11:59 pmSEA-PHX
2h 54mnonstop
$103Multiple Airlines
Find Deal
Sat, Dec 20 - Tue, Jan 6
Frontier Logo
2:15 pm - 4:36 pmPHX-SEA
3h 21mnonstop
Frontier Logo
1:09 pm - 9:26 pmSEA-PHX
7h 17m1 stop
$104Frontier
Find Deal
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
9:23 am - 1:22 pmPHX-SEA
4h 59m1 stop
Frontier Logo
6:49 pm - 10:50 pmSEA-PHX
3h 01mnonstop
$105Frontier
Find Deal
Tue, Nov 25 - Sat, Nov 29
Frontier Logo
1:42 pm - 4:01 pmPHX-SEA
3h 19mnonstop
Frontier Logo
12:48 pm - 9:21 pmSEA-PHX
7h 33m1 stop
$106Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
9:23 am - 1:22 pmPHX-SEA
4h 59m1 stop
Frontier Logo
6:29 pm - 10:30 pmSEA-PHX
3h 01mnonstop
$107Frontier
Find Deal
Tue, Nov 25 - Fri, Nov 28

Frontier flights from Phoenix to Seattle

Our best Frontier deals on Phoenix to Seattle flight tickets
Frontier
Dec 3
PHX7:43 pmPhoenix Sky Harbor Intl
15h 23m
1 stop
SEA10:06 amSeattle/Tacoma Intl
Dec 6
SEA5:21 pmSeattle/Tacoma Intl
2h 59m
PHX9:20 pmPhoenix Sky Harbor Intl
$97
Find similar
Frontier
Dec 5
PHX1:42 pmPhoenix Sky Harbor Intl
3h 19m
SEA4:01 pmSeattle/Tacoma Intl
Dec 7
SEA12:48 pmSeattle/Tacoma Intl
10h 56m
1 stop
PHX12:44 amPhoenix Sky Harbor Intl
$98
Find similar
Frontier
Dec 24
PHX9:58 amPhoenix Sky Harbor Intl
4h 53m
1 stop
SEA1:51 pmSeattle/Tacoma Intl
Jan 2
SEA7:48 pmSeattle/Tacoma Intl
3h 02m
PHX11:50 pmPhoenix Sky Harbor Intl
$100
Find similar

Southwest flights from Phoenix to Seattle

Our best Southwest deals on Phoenix to Seattle flight tickets
Southwest
Dec 3
PHX8:10 amPhoenix Sky Harbor Intl
4h 45m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Dec 10
SEA5:15 amSeattle/Tacoma Intl
2h 45m
PHX9:00 amPhoenix Sky Harbor Intl
$122
Find similar
Southwest
Dec 11
PHX3:35 pmPhoenix Sky Harbor Intl
8h 20m
1 stop
SEA10:55 pmSeattle/Tacoma Intl
Dec 18
SEA5:15 amSeattle/Tacoma Intl
2h 45m
PHX9:00 amPhoenix Sky Harbor Intl
$127
Find similar
Southwest
Dec 6
PHX7:05 pmPhoenix Sky Harbor Intl
3h 10m
SEA9:15 pmSeattle/Tacoma Intl
Dec 9
SEA6:15 amSeattle/Tacoma Intl
7h 25m
2 stops
PHX2:40 pmPhoenix Sky Harbor Intl
$132
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Phoenix to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Phoenix to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 1/16

2:15 pm-4:28 pm

Nonstop3h 13m

Seattle/Tacoma Intl

Sun 1/18

2:54 pm-12:44 am

1 stop8h 50m

$97

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 12/5

1:42 pm-4:01 pm

Nonstop3h 19m

Seattle/Tacoma Intl

Fri 12/12

3:40 pm-8:06 am

1 stop15h 26m

$98

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 12/24

9:58 am-1:51 pm

1 stop4h 53m

Seattle/Tacoma Intl

Sat 1/3

6:12 pm-10:12 pm

Nonstop3h 00m

$100

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 12/20

5:32 pm-1:54 pm

1 stop21h 22m

Seattle/Tacoma Intl

Sat 1/3

6:12 pm-10:12 pm

Nonstop3h 00m

$101

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 12/13

2:15 pm-4:36 pm

Nonstop3h 21m

Seattle/Tacoma Intl

Mon 12/15

11:01 am-9:26 pm

1 stop9h 25m

$102

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 12/20

3:00 pm-5:17 pm

Nonstop3h 17m

Seattle/Tacoma Intl

Tue 1/6

8:05 pm-11:59 pm

Nonstop2h 54m

$103

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 2/27

2:15 pm-4:36 pm

Nonstop3h 21m

Seattle/Tacoma Intl

Mon 3/2

1:09 pm-9:26 pm

1 stop7h 17m

$104

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 11/25

9:23 am-1:22 pm

1 stop4h 59m

Seattle/Tacoma Intl

Sat 11/29

6:49 pm-10:50 pm

Nonstop3h 01m

$105

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 12/5

1:42 pm-4:01 pm

Nonstop3h 19m

Seattle/Tacoma Intl

Sun 12/7

12:48 pm-9:21 pm

1 stop7h 33m

$106

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 11/25

9:23 am-1:22 pm

1 stop4h 59m

Seattle/Tacoma Intl

Fri 11/28

6:29 pm-10:30 pm

Nonstop3h 01m

$107

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Phoenix to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Phoenix to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $147. If you don’t want to visit Seattle in January, then you should wait until February to fly from Phoenix, when ticket prices are also cheap, with an average price of $167.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Phoenix is on a Friday. momondo users have found tickets for Friday departures for as low as $273. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Phoenix because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $465.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Phoenix at noon is the least expensive time of day to depart. momondo users have found prices as low as $236 when looking at flights departing at noon. Flights to Seattle are more costly in the evening, with an average ticket price of $468. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Phoenix to Seattle/Tacoma Intl flight route?

Fly from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl for the best Phoenix - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Phoenix when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $189 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Phoenix for as low as $166 on momondo.

What cabin class options are available on Phoenix to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Phoenix to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Phoenix to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phoenix to Seattle

Fastest flight time

3h 05m

Direct flights

Every day

Airports in Seattle

1 airport
The fastest flight from Phoenix to Seattle takes 3h 05m
Direct flights go from Phoenix to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Phoenix to Seattle/Tacoma Intl by plane?

    There are 1114.3 mi between Phoenix and Seattle/Tacoma Intl. By plane, this route typically takes 3h 10m.

  • When did momondo last update prices for flights from Phoenix to Seattle/Tacoma Intl Airport?

    Prices for flights from Phoenix to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Phoenix to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Phoenix to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Phoenix to Seattle

Compare and see reviews for airlines that fly from Phoenix to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $53Free CancellationRating
5.8
3,109 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $84Free CancellationRating
7.8
2,809 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $97Free CancellationRating
8.0
11,288 reviews
Search Alaska Airlines flights
DeltaPriceFrom $99Free CancellationRating
7.9
8,007 reviews
Search Delta flights
SouthwestPriceFrom $118Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $142Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Puyallup
Marysville
Redmond
Tukwila
Lakewood
Federal Way
Fife
Cle Elum
Centralia
Kirkland
Westport
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Phoenix to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Phoenix to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Phoenix to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Phoenix which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Phoenix to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Phoenix.

I’m not ready to book a flight from Phoenix to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Phoenix to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

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