What is the cheapest airline that flies from Phoenix Sky Harbor Intl to Washington?

Frontier, Delta, and Alaska Airlines are the most popular carriers operating from Phoenix Sky Harbor Intl to Washington

What airlines fly to State of Washington?

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to State of Washington from Phoenix Sky Harbor Intl Airport according to our data. Alaska Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Washington?

The number of operators available for flights from Phoenix Sky Harbor Intl Airport to Washington is 7 as of February 2026.

How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Washington?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix Sky Harbor Intl Airport to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington 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 Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$60 Cheap Flights from Phoenix Sky Harbor Intl Airport to State of Washington in 2026

Q: How many flights depart from Phoenix Sky Harbor Intl Airport to State of Washington on average per week?

The number of flights available between Phoenix Sky Harbor Intl Airport and State of Washington is 382 per week as of February 2026. The most frequent departure day is Thu, with 26% of weekly flights leaving on this day.

Q: How many flights depart from Phoenix Sky Harbor Intl Airport to State of Washington on average per day?

54 flights are operational daily from Phoenix Sky Harbor Intl Airport to State of Washington as of February 2026. The most popular departure time for this route is 11:00AM, with 47% of flights per day taking off at noon.

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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Washington

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 10:17 am

PHX

SEA

3h 17mnonstop

9:08 pm - 1:03 am

SEA

PHX

2h 55mnonstop

$92Frontier

Sat, Feb 28 - Sat, Mar 7

6:00 am - 8:13 am

PHX

SEA

3h 13mnonstop

10:08 pm - 1:05 am

SEA

PHX

2h 57mnonstop

$93Frontier

Thu, Mar 5 - Mon, Mar 9

6:00 am - 8:13 am

PHX

SEA

3h 13mnonstop

12:30 pm - 4:34 pm

SEA

PHX

3h 04mnonstop

$96Frontier

Thu, Feb 26 - Sun, Mar 1

8:04 pm - 8:08 pm

PHX

SEA

25h 04m

1 stop

9:08 pm - 1:03 am

SEA

PHX

2h 55mnonstop

$97Frontier

Wed, Mar 4 - Sat, Mar 7

6:00 am - 8:58 am

PHX

PDX

2h 58mnonstop

9:34 pm - 12:13 am

PDX

PHX

2h 39mnonstop

$149Multiple Airlines

Wed, Mar 25 - Wed, Apr 1

6:00 am - 8:58 am

PHX

PDX

2h 58mnonstop

9:34 pm - 12:13 am

PDX

PHX

2h 39mnonstop

$151Multiple Airlines

Wed, Mar 18 - Tue, Mar 24

8:49 pm - 11:59 pm

PHX

PAE

3h 10mnonstop

3:40 pm - 6:35 pm

PAE

PHX

2h 55mnonstop

$187Alaska Airlines

Thu, May 7 - Wed, May 13

8:49 pm - 11:59 pm

PHX

PAE

3h 10mnonstop

10:45 am - 1:40 pm

PAE

PHX

2h 55mnonstop

$197Alaska Airlines

Fri, May 1 - Sun, May 3

6:05 pm - 7:58 pm

PHX

PSC

2h 53mnonstop

5:06 am - 8:00 am

PSC

PHX

2h 54mnonstop

$254American Airlines

Tue, Mar 3 - Tue, Mar 10

6:05 am - 10:41 am

PHX

PSC

5h 36m

1 stop

5:00 pm - 12:42 am

PSC

PHX

6h 42m

1 stop

$264Delta

Wed, Feb 25 - Wed, Mar 4

Frontier flights from Phoenix Sky Harbor Intl Airport to State of Washington

Our best Frontier deals on Phoenix Sky Harbor Intl Airport to State of Washington flight tickets

Frontier

Feb 28

PHX8:00 amPhoenix Sky Harbor Intl

3h 17m

SEA10:17 amSeattle/Tacoma Intl

Mar 7

SEA9:08 pmSeattle/Tacoma Intl

2h 55m

PHX1:03 amPhoenix Sky Harbor Intl

$92

Frontier

Mar 5

PHX6:00 amPhoenix Sky Harbor Intl

3h 13m

SEA8:13 amSeattle/Tacoma Intl

Mar 9

SEA10:08 pmSeattle/Tacoma Intl

2h 57m

PHX1:05 amPhoenix Sky Harbor Intl

$93

Frontier

Feb 26

PHX6:00 amPhoenix Sky Harbor Intl

3h 13m

SEA8:13 amSeattle/Tacoma Intl

Mar 1

SEA12:30 pmSeattle/Tacoma Intl

3h 04m

PHX4:34 pmPhoenix Sky Harbor Intl

$96

Southwest flights from Phoenix Sky Harbor Intl Airport to State of Washington

Our best Southwest deals on Phoenix Sky Harbor Intl Airport to State of Washington flight tickets

Southwest

Mar 21

PHX10:25 pmPhoenix Sky Harbor Intl

3h 00m

SEA1:25 amSeattle/Tacoma Intl

Mar 28

SEA6:35 amSeattle/Tacoma Intl

2h 45m

PHX9:20 amPhoenix Sky Harbor Intl

$124

Southwest

Mar 23

PHX5:45 pmPhoenix Sky Harbor Intl

7h 20m

2 stops

GEG1:05 amSpokane

Mar 25

GEG5:25 amSpokane

8h 35m

2 stops

PHX2:00 pmPhoenix Sky Harbor Intl

$302

Southwest

Mar 23

PHX9:55 pmPhoenix Sky Harbor Intl

11h 55m

1 stop

GEG9:50 amSpokane

Mar 25

GEG5:25 amSpokane

8h 35m

2 stops

PHX2:00 pmPhoenix Sky Harbor Intl

$303

momondo Fare Finder

Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 2/28

8:00 am-10:17 am

Nonstop3h 17m

Seattle/Tacoma Intl

Sat 3/7

9:08 pm-1:03 am

Nonstop2h 55m

$92

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 3/5

6:00 am-8:13 am

Nonstop3h 13m

Seattle/Tacoma Intl

Mon 3/9

10:08 pm-1:05 am

Nonstop2h 57m

$93

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-8:13 am

Nonstop3h 13m

Seattle/Tacoma Intl

Sun 3/1

12:30 pm-4:34 pm

Nonstop3h 04m

$96

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 3/4

8:04 pm-8:08 pm

1 stop25h 04m

Seattle/Tacoma Intl

Sat 3/7

9:08 pm-1:03 am

Nonstop2h 55m

$97

PhoenixPortland

PHX - PDX

PHXPDX

Phoenix Sky Harbor Intl

Wed 3/25

6:00 am-8:58 am

Nonstop2h 58m

Portland

Wed 4/1

9:34 pm-12:13 am

Nonstop2h 39m

$149

PhoenixPortland

PHX - PDX

PHXPDX

Phoenix Sky Harbor Intl

Wed 3/18

6:00 am-8:58 am

Nonstop2h 58m

Portland

Tue 3/24

9:34 pm-12:13 am

Nonstop2h 39m

$151

PhoenixEverett

PHX - PAE

PHXPAE

Phoenix Sky Harbor Intl

Thu 5/7

8:49 pm-11:59 pm

Nonstop3h 10m

Everett Paine Field

Wed 5/13

3:40 pm-6:35 pm

Nonstop2h 55m

$187

PhoenixEverett

PHX - PAE

PHXPAE

Phoenix Sky Harbor Intl

Fri 5/1

8:49 pm-11:59 pm

Nonstop3h 10m

Everett Paine Field

Sun 5/3

10:45 am-1:40 pm

Nonstop2h 55m

$197

PhoenixPasco

PHX - PSC

PHXPSC

Phoenix Sky Harbor Intl

Tue 3/3

6:05 pm-7:58 pm

Nonstop2h 53m

Pasco Tri Cities

Tue 3/10

5:06 am-8:00 am

Nonstop2h 54m

$254

PhoenixPasco

PHX - PSC

PHXPSC

Phoenix Sky Harbor Intl

Wed 2/25

6:05 am-10:41 am

1 stop5h 36m

Pasco Tri Cities

Wed 3/4

5:00 pm-12:42 am

1 stop6h 42m

$264

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to State of Washington

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

Prices

Airlines

Other information

What is the cheapest month to fly to State of Washington?

The month of January is, on average, the cheapest month to fly to State of Washington from Phoenix Sky Harbor Intl Airport, with most prices found around $133. If you aren’t able to travel to State of Washington during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $167.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Phoenix Sky Harbor Intl Airport to State of Washington is on a Friday. Travelers who choose to depart for State of Washington on a Friday will often find tickets for as low as $268. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix Sky Harbor Intl Airport to State of Washington for around $453.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $235. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $362 on average. Flights to State of Washington from Phoenix Sky Harbor Intl Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Phoenix Sky Harbor Intl to Washington flight route?

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

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $188 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Phoenix Sky Harbor Intl Airport for as low as $164 on momondo.

What cabin class options are available on Phoenix Sky Harbor Intl to Washington flights?

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

Can stopping save me money on Phoenix Sky Harbor Intl Airport to State of Washington flights?

No. A direct flight is the cheapest option for a flight between Phoenix Sky Harbor Intl Airport to State of Washington.

Cheap Phoenix Sky Harbor Intl Airport to State of Washington flight deals and tips

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

Best Price Found	$107
Fastest flight time	2h 30m
Direct flights	Every day
Airports in State of Washington	96 airports

The best one-way flight to State of Washington from Phoenix Sky Harbor Intl Airport in the past 72 hours is $107. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to State of Washington found on momondo in the last 72 hours is $182.

The fastest flight from Phoenix Sky Harbor Intl Airport to State of Washington takes 2h 30m

Direct flights go from Phoenix Sky Harbor Intl Airport to State of Washington every day.

There are 96 airports in State of Washington. From Phoenix Sky Harbor Intl Airport there are direct flights to Portland (PDX), Spokane (GEG).

Search flight deals

When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Washington?
Prices for flights from Phoenix Sky Harbor Intl Airport to Washington refresh daily.
How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Washington?
The number of operators available for flights from Phoenix Sky Harbor Intl Airport to Washington is 7 as of February 2026.
How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phoenix Sky Harbor Intl Airport to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington 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 Washington. 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 State of Washington?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Phoenix Sky Harbor Intl Airport to State of Washington is Boeing 737-800 Passenger/BBJ2 (winglets) (19.49% of total bookings). The next most popular plane models are Embraer 175 (14.90%), Boeing 737 MAX 8 (9.37%), and Airbus A320neo (8.89%).

Best airlines flying from Phoenix Sky Harbor Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $41	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
Hawaiian Airlines	PriceFrom $83	Free Cancellation	Rating 7.8 2,833 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $96	Free Cancellation	Rating 7.9 8,175 reviews	Search Delta flights
Alaska Airlines	PriceFrom $110	Free Cancellation	Rating 8.0 11,875 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $116	Free Cancellation	Rating 8.0 4,280 reviews	Search Southwest flights
American Airlines	PriceFrom $117	Free Cancellation	Rating 7.2 11,266 reviews	Search American Airlines flights
Allegiant Air	PriceFrom $148	Free Cancellation	Rating 7.2 711 reviews	Search Allegiant Air flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from Phoenix.

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

Yes. momondo enables you to select and highlight flights to Washington from Phoenix with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phoenix to Washington.

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

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

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Flights to New Yorkfrom $52

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Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $25

Flights to Bostonfrom $65

Flights to Atlantafrom $49

Flights to Dallasfrom $54

Flights to Seattlefrom $66

Cheap flights from Phoenix Sky Harbor Intl Airport to Washington from $60

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Frontier flights from Phoenix Sky Harbor Intl Airport to State of Washington

Our best Frontier deals on Phoenix Sky Harbor Intl Airport to State of Washington flight tickets

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Our best Southwest deals on Phoenix Sky Harbor Intl Airport to State of Washington flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Washington that are best for you.

See travel insights to Washington from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to State of Washington

What is the cheapest month to fly to State of Washington?

What is the cheapest day to depart on your flight to State of Washington?

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

What is the cheapest Phoenix Sky Harbor Intl to Washington flight route?

How far in advance should I book a flight to State of Washington?

What cabin class options are available on Phoenix Sky Harbor Intl to Washington flights?

Can stopping save me money on Phoenix Sky Harbor Intl Airport to State of Washington flights?

What is the cheapest airline that flies from Phoenix Sky Harbor Intl to Washington?

What airlines fly to State of Washington?

How many flights depart from Phoenix Sky Harbor Intl Airport to State of Washington on average per day?

How many flights depart from Phoenix Sky Harbor Intl Airport to State of Washington on average per week?

Cheap Phoenix Sky Harbor Intl Airport to State of Washington flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

Best airlines flying from Phoenix Sky Harbor Intl Airport to State of Washington

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to State of Washington with momondo

Why use momondo?

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

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

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

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

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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