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Cheap flights from Phoenix Sky Harbor Intl Airport to Seattle from $29

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 Sky Harbor Intl Airport to Seattle departing on 2/12. 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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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Phoenix Sky Harbor Intl Airport to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Phoenix Sky Harbor Intl Airport to Seattle.

Cheap last minute flights

Planning a quick getaway from Phoenix Sky Harbor Intl Airport to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Phoenix Sky Harbor Intl Airport to Seattle

Find recent round-trip train or bus tickets from Phoenix Sky Harbor Intl Airport to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
2:46 pm - 5:00 pmPHX-SEA
3h 14mnonstop
9:52 pm - 1:49 amSEA-PHX
2h 57mnonstop
$52Frontier
Find Deal
Thu, Feb 6 - Mon, Feb 10
2:46 pm - 5:00 pmPHX-SEA
3h 14mnonstop
9:52 pm - 1:49 amSEA-PHX
2h 57mnonstop
$53Frontier
Find Deal
Thu, Feb 6 - Mon, Feb 10
2:46 pm - 5:00 pmPHX-SEA
3h 14mnonstop
9:52 pm - 1:49 amSEA-PHX
2h 57mnonstop
$54Frontier
Find Deal
Thu, Feb 6 - Mon, Feb 10
2:37 pm - 4:51 pmPHX-SEA
3h 14mnonstop
5:15 am - 11:40 amSEA-PHX
5h 25m1 stop
Fri, Feb 28 - Sat, Mar 1
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
8:44 pm - 12:44 amSEA-PHX
3h 00mnonstop
Mon, Feb 10 - Mon, Feb 17
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
5:45 am - 11:01 amSEA-PHX
4h 16m1 stop
$106Spirit Airlines
Find Deal
Thu, Feb 6 - Mon, Feb 10
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
7:10 am - 11:01 amSEA-PHX
26h 51m1 stop
$112Spirit Airlines
Find Deal
Thu, Feb 6 - Sun, Feb 9
2:45 pm - 4:59 pmPHX-SEA
3h 14mnonstop
12:59 pm - 4:50 pmSEA-PHX
2h 51mnonstop
$147Alaska Airlines
Find Deal
Tue, Feb 4 - Sun, Feb 9
1:37 pm - 5:29 pmPHX-SEA
4h 52m1 stop
8:10 pm - 11:59 pmSEA-PHX
2h 49mnonstop
$172Alaska Airlines
Find Deal
Tue, Feb 4 - Fri, Feb 7
5:00 pm - 7:15 pmPHX-SEA
3h 15mnonstop
7:15 am - 11:09 amSEA-PHX
2h 54mnonstop
$184Delta
Find Deal
Sat, Feb 1 - Tue, Feb 11
2:26 pm - 4:40 pmPHX-SEA
3h 14mnonstop
$29Frontier
Find Deal
Wed, Feb 12
1:33 pm - 4:48 pmPHX-SEA
3h 15mnonstop
$30Frontier
Find Deal
Wed, Mar 12
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
$51Spirit Airlines
Find Deal
Sat, Feb 8
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
$57Spirit Airlines
Find Deal
Thu, Jan 23
5:00 pm - 7:15 pmPHX-SEA
3h 15mnonstop
$70Delta
Find Deal
Tue, Feb 11
5:15 am - 8:25 amPHX-SEA
3h 10mnonstop
$74Alaska Airlines
Find Deal
Thu, Mar 27
6:40 am - 12:46 pmPHX-SEA
7h 06m1 stop
$98Alaska Airlines
Find Deal
Tue, Feb 11
6:15 am - 8:35 amPHX-SEA
3h 20mnonstop
$99Delta
Find Deal
Sun, Feb 9
8:40 am - 3:50 pmPHX-SEA
8h 10m2 stops
$169Southwest
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Sun, Mar 2
6:45 am - 2:15 pmPHX-SEA
7h 30m2 stops
$180Southwest
Find Deal
Wed, Apr 16
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
5:45 am - 11:01 amSEA-PHX
4h 16m1 stop
$177Spirit Airlines
Find Deal
Thu, Jan 16 - Mon, Jan 20
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
5:45 am - 11:01 amSEA-PHX
4h 16m1 stop
$187Spirit Airlines
Find Deal
Thu, Jan 16 - Mon, Jan 20
11:56 am - 12:19 amPHX-SEA
13h 23m1 stop
7:10 am - 11:01 amSEA-PHX
26h 51m1 stop
$216Spirit Airlines
Find Deal
Sat, Jan 18 - Thu, Jan 23
9:59 pm - 8:50 amPHX-SEA
11h 51m1 stop
5:16 pm - 8:17 amSEA-PHX
14h 01m1 stop
$289Frontier
Find Deal
Thu, Jan 16 - Mon, Jan 20
6:00 am - 2:25 pmPHX-SEA
9h 25m1 stop
3:18 pm - 12:26 amSEA-PHX
8h 08m1 stop
$299Frontier
Find Deal
Fri, Jan 17 - Sun, Jan 19
5:40 pm - 6:00 amPHX-SEA
13h 20m1 stop
9:51 am - 1:49 pmSEA-PHX
2h 58mnonstop
$427Alaska Airlines
Find Deal
Tue, Jan 14 - Wed, Jan 15
8:30 am - 10:49 amPHX-SEA
3h 19mnonstop
3:00 pm - 7:01 pmSEA-PHX
3h 01mnonstop
$477American Airlines
Find Deal
Sat, Jan 18 - Thu, Jan 23
8:30 am - 10:49 amPHX-SEA
3h 19mnonstop
6:10 am - 10:11 amSEA-PHX
3h 01mnonstop
$534American Airlines
Find Deal
Wed, Jan 15 - Sat, Jan 18
4:24 pm - 6:39 pmPHX-SEA
3h 15mnonstop
12:59 pm - 4:50 pmSEA-PHX
2h 51mnonstop
$591Alaska Airlines
Find Deal
Tue, Jan 14 - Wed, Jan 15
9:00 am - 11:25 amPHX-SEA
3h 25mnonstop
11:05 am - 2:55 pmSEA-PHX
2h 50mnonstop
$609Delta
Find Deal
Fri, Jan 17 - Sat, Jan 18
2:46 pm - 5:00 pmPHX-SEA
3h 14mnonstop
9:52 pm - 1:49 amSEA-PHX
2h 57mnonstop
$52Frontier
Find Deal
Thu, Feb 6 - Mon, Feb 10
2:46 pm - 5:00 pmPHX-SEA
3h 14mnonstop
9:52 pm - 1:49 amSEA-PHX
2h 57mnonstop
$53Frontier
Find Deal
Thu, Feb 6 - Mon, Feb 10
6:36 pm - 8:52 pmPHX-SEA
3h 16mnonstop
8:10 pm - 11:59 pmSEA-PHX
2h 49mnonstop
Fri, Feb 7 - Tue, Feb 11
12:09 pm - 3:22 pmPHX-SEA
3h 13mnonstop
6:00 am - 8:56 amSEA-PHX
2h 56mnonstop
Sun, May 11 - Sun, May 18
6:15 am - 8:35 amPHX-SEA
3h 20mnonstop
7:15 am - 11:09 amSEA-PHX
2h 54mnonstop
$143Delta
Find Deal
Mon, Feb 3 - Tue, Feb 11
2:45 pm - 4:59 pmPHX-SEA
3h 14mnonstop
12:59 pm - 4:50 pmSEA-PHX
2h 51mnonstop
$147Alaska Airlines
Find Deal
Tue, Feb 4 - Sun, Feb 9
6:00 am - 9:15 amPHX-SEA
3h 15mnonstop
3:20 pm - 6:18 pmSEA-PHX
2h 58mnonstop
$172Delta
Find Deal
Sat, Jun 7 - Mon, Jun 16
7:00 am - 9:15 amPHX-SEA
3h 15mnonstop
8:10 pm - 11:59 pmSEA-PHX
2h 49mnonstop
$184Alaska Airlines
Find Deal
Sat, Feb 1 - Tue, Feb 11
11:33 am - 2:02 pmPHX-SEA
3h 29mnonstop
5:45 pm - 9:51 pmSEA-PHX
3h 06mnonstop
$356American Airlines
Find Deal
Thu, Feb 6 - Tue, Feb 11
11:33 am - 2:02 pmPHX-SEA
3h 29mnonstop
5:45 pm - 9:51 pmSEA-PHX
3h 06mnonstop
$379American Airlines
Find Deal
Thu, Feb 6 - Tue, Feb 11

Frontier flights from Phoenix Sky Harbor Intl Airport to Seattle

Our best Frontier deals on Phoenix Sky Harbor Intl Airport to Seattle flight tickets
Frontier
Feb 6
PHX2:46 pmPhoenix Sky Harbor Intl
3h 14m
SEA5:00 pmSeattle/Tacoma Intl
Feb 10
SEA9:52 pmSeattle/Tacoma Intl
2h 57m
PHX1:49 amPhoenix Sky Harbor Intl
Frontier
Feb 6
PHX2:46 pmPhoenix Sky Harbor Intl
3h 14m
SEA5:00 pmSeattle/Tacoma Intl
Feb 10
SEA9:52 pmSeattle/Tacoma Intl
2h 57m
PHX1:49 amPhoenix Sky Harbor Intl
Frontier
Feb 6
PHX2:46 pmPhoenix Sky Harbor Intl
3h 14m
SEA5:00 pmSeattle/Tacoma Intl
Feb 10
SEA9:52 pmSeattle/Tacoma Intl
2h 57m
PHX1:49 amPhoenix Sky Harbor Intl

Spirit Airlines flights from Phoenix Sky Harbor Intl Airport to Seattle

Our best Spirit Airlines deals on Phoenix Sky Harbor Intl Airport to Seattle flight tickets
Spirit Airlines
Feb 6
PHX11:56 amPhoenix Sky Harbor Intl
13h 23m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Feb 10
SEA5:45 amSeattle/Tacoma Intl
4h 16m
1 stop
PHX11:01 amPhoenix Sky Harbor Intl
Spirit Airlines
Feb 6
PHX11:56 amPhoenix Sky Harbor Intl
13h 23m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Feb 9
SEA7:10 amSeattle/Tacoma Intl
26h 51m
1 stop
PHX11:01 amPhoenix Sky Harbor Intl
Spirit Airlines
Feb 10
PHX11:56 amPhoenix Sky Harbor Intl
13h 23m
1 stop
SEA12:19 amSeattle/Tacoma Intl
Feb 17
SEA5:15 amSeattle/Tacoma Intl
5h 25m
1 stop
PHX11:40 amPhoenix Sky Harbor Intl

See travel insights to Seattle from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport 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 typical price of a round-trip flight between Phoenix Sky Harbor Intl Airport and Seattle?

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Phoenix Sky Harbor Intl Airport 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 September to fly from Phoenix Sky Harbor Intl Airport, when ticket prices are also cheap, with an average price of $153.

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

On average, the least expensive day to fly to Seattle from Phoenix Sky Harbor Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $167. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Phoenix Sky Harbor Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $214.

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

Flying to Seattle from Phoenix Sky Harbor Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $156 when looking at flights departing in the afternoon. Flights to Seattle are more costly at noon, with an average ticket price of $206. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl for the best Phoenix Sky Harbor Intl - 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 Sky Harbor Intl Airport when booking 42 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $179 when searching 42 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $138 in the past 72 hours.

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

There are 4 cabin classes available to choose from on Phoenix Sky Harbor Intl 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.

How have Phoenix Sky Harbor Intl Airport to Seattle flight prices changed over time?

As of January 2025, prices for Phoenix Sky Harbor Intl Airport to Seattle flights are approximately 41% more expensive when compared to flights at the same time last year.

When to book flights from Phoenix Sky Harbor Intl Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to Seattle (PHX to SEA) flight deals and tips

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

Best Price Found

$29

Fastest flight time

3h 08m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Phoenix Sky Harbor Intl Airport in the past 72 hours is $29. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to Seattle found on momondo in the last 72 hours is $52.
The fastest flight from Phoenix Sky Harbor Intl Airport to Seattle takes 3h 08m
Direct flights go from Phoenix Sky Harbor Intl Airport to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    Phoenix Sky Harbor Intl and Seattle/Tacoma Intl are 1117.0 mi apart from one another. Typically, this will take 3h 08m by plane in normal conditions.

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

    Prices for flights from Phoenix Sky Harbor Intl Airport to Seattle/Tacoma Intl Airport refresh daily.

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

  • How old do you have to be to fly from Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport 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.

  • What is the most popular plane model from Phoenix Sky Harbor Intl Airport to Seattle?

  • What is the most popular airline from Phoenix Sky Harbor Intl Airport to Seattle?


Best airlines flying from Phoenix Sky Harbor Intl Airport to Seattle

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $45Free CancellationRating
6.0
3,431 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $95Free CancellationRating
6.3
8,088 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $98Free CancellationRating
8.1
4,657 reviews
Search Southwest flights
DeltaPriceFrom $98Free CancellationRating
8.0
8,505 reviews
Search Delta flights
Alaska AirlinesPriceFrom $117Free CancellationRating
8.0
9,669 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $157Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Southwest Flights From Phoenix Sky Harbor Intl Airport to Seattle

    The lowest priced Southwest flight from Phoenix Sky Harbor Intl Airport to Seattle from the last 72 hours was $98. Generally, Southwest has 6 flights on this route every week with an average price of $178. Southwest is rated 8.1/10 by our users.

  • Delta Flights From Phoenix Sky Harbor Intl Airport to Seattle

    Delta (8.0/10 from 8,505 reviews) operates around 25 flights from Phoenix Sky Harbor Intl Airport to Seattle in any given week. The average Delta airfare for this route is around $208, with deals from around $98 rare but found on momondo. Referenced prices are for round-trip Phoenix Sky Harbor Intl Airport to Seattle flight searches in the last 72 hours.


Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phoenix to Seattle. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Phoenix to Seattle flights to just show those with flexible booking policies.

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?

Yes. momondo can track prices for Phoenix to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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