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Flights from Phoenix to Seattle

What to know about flights from Phoenix to Seattle?

The approximate distance between Phoenix and Seattle is 1,780.78 km. Average flight time from Phoenix to Seattle is around 3 hours 14 minutes. According to Trip.com data, travel demand hits its peak in January. The cheapest month to book flights is October.

Cheapest one-way
US$55
Frontier Airlines Frontier Airlines PHX-SEA 5h 33m · 1 stop Wed, Nov 4
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Cheapest round-trip
US$129
Frontier Airlines Frontier Airlines PHX-SEA 5h 33m · 2 stops Thu, Nov 12 - Tue, Nov 17
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Recommended airlines
Frontier Airlines Frontier Airlines Cheapest · From US$55 Alaska Airlines Alaska Airlines Most booked
When to fly
October
Cheapest
January
Peak season
Route details
1,780.78 km
Flight distance
3h 14m
Average flight time

Explore the cheapest one-way and round-trip flights from Phoenix to Seattle over the next 90 days, with one-way fares from US$55 and round-trip from US$129. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        PHX 09:02
        3h 12m
        Nonstop
        SEA 12:14
        Phoenix - Seattle | Fri, Oct 30 | Alaska Airlines
        SEA 15:10
        2h 50m
        Nonstop
        PHX 18:00
        Seattle - Phoenix | Sun, Nov 1 | Alaska Airlines
        US$129 US$162
        20% off
        20% off
        US$162 US$129
      • PHX 09:02
        3h 12m
        Nonstop
        SEA 12:14
        Phoenix - Seattle | Wed, Oct 28 | Alaska Airlines
        SEA 15:10
        2h 50m
        Nonstop
        PHX 18:00
        Seattle - Phoenix | Sat, Oct 31 | Alaska Airlines
        US$129 US$162
        20% off
        20% off
        US$162 US$129
      • PHX 09:02
        3h 12m
        Nonstop
        SEA 12:14
        Phoenix - Seattle | Thu, Oct 29 | Alaska Airlines
        SEA 15:10
        2h 50m
        Nonstop
        PHX 18:00
        Seattle - Phoenix | Sun, Nov 1 | Alaska Airlines
        US$129 US$162
        20% off
        20% off
        US$162 US$129
      • PHX 15:59
        3h 11m
        Nonstop
        SEA 19:10
        Phoenix - Seattle | Fri, Oct 30 | Delta Air Lines
        SEA 07:15
        3h 4m
        Nonstop
        PHX 11:19
        Seattle - Phoenix | Mon, Nov 2 | Delta Air Lines
        US$130
        20% off
        US$162 US$130
      • PHX 07:47
        3h 27m
        Nonstop
        SEA 11:14
        Phoenix - Seattle | Thu, Oct 29 | American Airlines
        SEA 07:27
        3h 5m
        Nonstop
        PHX 10:32
        Seattle - Phoenix | Sun, Nov 1 | Alaska Airlines
        US$136
        16% off
        US$162 US$136
      • PHX 14:00
        5h 33m
        1 stop
        SEA 18:33
        Phoenix - Seattle | Thu, Nov 12 | Frontier Airlines
        SEA 19:48
        21h 14m
        1 stop
        PHX 18:02
        Seattle - Phoenix | Tue, Nov 17 | Frontier Airlines
        US$129
        20% off
        US$162 US$129
      • PHX 07:15
        8h 57m
        1 stop
        SEA 15:12
        Phoenix - Seattle | Thu, Nov 5 | Frontier Airlines
        SEA 16:27
        7h 15m
        1 stop
        PHX 00:42
        Seattle - Phoenix | Sun, Nov 8 | Frontier Airlines
        US$137
        15% off
        US$162 US$137
      • PHX 13:00
        17h 25m
        1 stop
        SEA 14:00
        Phoenix - Seattle | Mon, Oct 12 | Normal Airline
        SEA 15:00
        6h
        Nonstop
        PHX 16:00
        Seattle - Phoenix | Wed, Oct 14 | Normal Airline
        More cheap flights
        More cheap flights
      • Cheapest nonstop
        PHX 20:58
        3h 17m
        Nonstop
        SEA 23:15
        Phoenix - Seattle | Wed, Dec 2 | Alaska Airlines
        US$64 US$80
        20% off
        20% off
        US$80 US$64
      • PHX 08:02
        3h 12m
        Nonstop
        SEA 11:14
        Phoenix - Seattle | Thu, Oct 29 | Alaska Airlines
        US$65 US$80
        19% off
        19% off
        US$80 US$65
      • PHX 06:05
        3h 13m
        Nonstop
        SEA 08:18
        Phoenix - Seattle | Mon, Nov 16 | Alaska Airlines
        US$65 US$80
        19% off
        19% off
        US$80 US$65
      • PHX 06:02
        3h 10m
        Nonstop
        SEA 09:12
        Phoenix - Seattle | Sat, Oct 31 | Alaska Airlines
        US$65
        19% off
        US$80 US$65
      • PHX 19:03
        3h 10m
        Nonstop
        SEA 22:13
        Phoenix - Seattle | Fri, Oct 30 | Alaska Airlines
        US$66
        18% off
        US$80 US$66
      • PHX 08:40
        3h 23m
        Nonstop
        SEA 11:03
        Phoenix - Seattle | Wed, Dec 2 | Delta Air Lines
        US$67
        16% off
        US$80 US$67
      • PHX 20:36
        3h 19m
        Nonstop
        SEA 22:55
        Phoenix - Seattle | Tue, Nov 3 | Delta Air Lines
        US$68
        15% off
        US$80 US$68
      • PHX 14:00
        5h 33m
        1 stop
        SEA 18:33
        Phoenix - Seattle | Wed, Nov 4 | Frontier Airlines
        US$55
        31% off
        US$80 US$55
      • PHX 12:30
        25h 7m
        1 stop
        SEA 12:37
        Phoenix - Seattle | Sun, Nov 22 | Frontier Airlines
        US$67
        16% off
        US$80 US$67
      • PHX 13:00
        17h 25m
        1 stop
        SEA 14:00
        Phoenix - Seattle | Mon, Oct 12 | Normal Airline
        More cheap flights
        More cheap flights

Flight.News
Flights from Phoenix to Seattle operate an average of 45 times per day over the past 7 days, with a 47.7% on-time departure rate and a 87.3% on-time arrival rate.

Which airlines are the most popular for Phoenix to Seattle flights?

You can choose from 2 airlines that fly from Phoenix to Seattle, including Alaska Airlines, Delta Air Lines, Frontier Airlines has lowest fares on this route.
Alaska Airlines logo Alaska Airlines
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from Phoenix to Seattle according to previous 12 months data from Trip.com.

Trip.com Price Trends on Flights from Phoenix to Seattle

Which month has the cheapest one-way flights from Phoenix to Seattle?

Average monthly one-way flight prices from Phoenix to Seattle, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Phoenix to Seattle is October, with an average price of US$124; while the month with the highest flight price is usually September, with an average price of up to US$208.

US$208
US$166
US$124
US$82
  • US$124
    Oct
  • US$144
    Nov
  • US$162
    Dec
  • US$201
    Jan
  • US$153
    Feb
  • US$162
    Mar
  • US$165
    Apr
  • US$191
    May
  • US$172
    Jun
  • US$187
    Jul
  • US$165
    Aug
  • US$208
    Sep

When is the cheapest day to fly from Phoenix to Seattle during Halloween?

Based on Trip.com's data over the past 3 days, these are the lowest one-way flight prices from Phoenix to Seattle during Halloween.

Halloween is scheduled for Oct 31. The cheapest flights from Phoenix to Seattle are available on Oct 28, with fares starting at US$67.

US$160
US$114
US$67
US$21
  • US$67
    28
    Oct
  • US$68
    29
  • US$73
    30
  • US$71
    31
  • US$160
    1
    Nov
  • US$90
    2

Frequently Asked Questions

  • What are the cheapest flights from Phoenix to Seattle (PHX-SEA)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$55 on Cheapest nonstop routes (e.g. PHX to SEA on Wed, Nov 4), while Frontier Airlines offers Cheapest nonstop round-trips from US$129 departing on Thu, Nov 12 and returning on Tue, Nov 17.
  • At the moment, you can catch a nonstop flight from Phoenix to Seattle with the following airlines, including: Alaska Airlines Delta Air Lines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 3 hours 14 minutes to fly from Phoenix to Seattle.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Phoenix to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 101 flight per week flying from Phoenix to Seattle. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS605 (06:15)
  • To find best deals on flights from Phoenix to Seattle, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Nov 4, with one-way flights priced at just US$55.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Phoenix to Seattle is October, when demand for travel is lower.
  • After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Phoenix to Seattle on October 31, 2026 with Alaska Airlines, with prices starting at US$67.
  • You can land at any one of the following hubs in Seattle: King County (Boeing Field) International Airport (BFI), Kenmore Air Harbor Seaplane Base (LKE), and Seattle-Tacoma International Airport (SEA). Flying from Phoenix Sky Harbor International Airport to Seattle-Tacoma International Airport (PHX-SEA) is by far the most common option on this route.
  • The time difference between Seattle and Phoenix is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Phoenix to Seattle is US$190. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Phoenix to Seattle is US$292. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Phoenix and Seattle, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Frontier Airlinesare the most popular budget airlines flying from Phoenix to Seattle. Check baggage, seat and payment fees before comparing the final price.

Trip.com Airline Insights on Flights from Phoenix to Seattle

Which airline offers the cheapest direct flights from Phoenix to Seattle?

Data is based on the average price of all nonstop flights from Phoenix to Seattle on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Frontier Airlines provides the lowest-priced direct flights from Phoenix to Seattle, with fares starting at US$105.

US$59
US$105
US$152
US$198
US$244
Frontier Airlines
US$105
Frontier Airlines
Hawaiian Airlines
US$164
Hawaiian Airlines
Delta Air Lines
US$169
Delta Air Lines
Alaska Airlines
US$194
Alaska Airlines
American Airlines
US$244
American Airlines

Which airline operates the most flights from Phoenix to Seattle?

Total flights from Phoenix to Seattle across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Qatar Airways operates the most frequent flights from Phoenix to Seattle, with 71 flights per week.

8
29
50
71
Qatar Airways
71
Qatar Airways
Alaska Airlines
57
Alaska Airlines
Delta Air Lines
37
Delta Air Lines
American Airlines
30
American Airlines
Virgin Atlantic
29
Virgin Atlantic

How many flights fly from Phoenix to Seattle daily?

The data is based on the flight numbers for each day of the week from Phoenix to Seattle within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Phoenix to Seattle is the highest on Friday and the lowest on Wednesday.

242
209
176
143
Highest
195
Mon
177
Tue
176
Wed
186
Thu
242
Fri
204
Sat
188
Sun

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.