Beginning of main content
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights


Amazing Frontier Airlines PHX to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $284 round trip and $102 one way. Prices and availability subject to change. Additional terms may apply.


SEA From PHX Economy Coach Packages on Similar Airlines


FAQs about Frontier Airlines Flights from PHX to SEA
Can I catch a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) right now?

For info on any present Seattle, WA (SEA-Seattle - Tacoma Intl.) quarantine requirements and travel advice, go to our Covid-19 Travel Advisor. Look before you book your flight, so you don't get caught up en route.

What terminal is Frontier Airlines at Phoenix Sky Harbor Airport?

The information printed on tickets often differs between airlines. If you're flying from Sky Harbor Intl. Airport (PHX) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Frontier Airlines and you can't locate your terminal details, consult the airline.

Are there Frontier Airlines non-stop flights from PHX to SEA?

Frontier Airlines doesn't have direct flights between Phoenix Sky Harbor Intl. Airport and Sea-Tac Airport, so get ready to make a stopover. If you've got time between flights, sit down and enjoy a coffee while waiting for your connection.

How long is a Frontier Airlines flight from PHX to SEA?

Bring that book you've been desperate to read. A flight from Phoenix Sky Harbor Intl. Airport to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Frontier Airlines takes about 7 hours and 52 minutes. You'll have enough time to get lost in the gripping plot.

How many direct and indirect flights does Frontier Airlines fly from PHX to SEA?

You shouldn't have any hassles syncing your time off with the flight schedule on offer from Frontier Airlines. It travels from Phoenix Sky Harbor Airport to Seattle - Tacoma Intl. Airport (SEA) roughly 21 times per month.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Seattle - Tacoma Intl. Airport (SEA), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Travelers ❤️ these 🏨 after their flight to Seattle

Red Roof Inn Seattle Airport - SEATAC
Red Roof Inn Seattle Airport - SEATAC
2.0 out of 5.0 16838 International Boulevard, SeaTac, WA
$83
3.6/5 (100 reviews)

This hotel is very close to the airport and transportation was excellent. We stayed here instead of trying to sleep at the airport and it was well worth it. Great place!

Reviewed on Jun 15, 2021
This hotel features free WiFi in public areas, laundry facilities, and self parking. A free airport shuttle is offered as well. Multilingual staff at the 24-hour ...
Red Lion Hotel Seattle Airport Sea-Tac
Red Lion Hotel Seattle Airport Sea-Tac
3.0 out of 5.0 18220 International Blvd, SeaTac, WA
$106
3.8/5 (53 reviews)

Convenient location to airport and long term parking.

Reviewed on May 20, 2021
This hotel doesn't skimp on freebies - guests have free WiFi and a free airport shuttle. Traveling for business? Take advantage of the business center, express ...
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
3.0 out of 5.0 3100 South 192nd Street, SeaTac, WA
$120
4.4/5 (79 reviews)

Clean Convinient Effeciant

Reviewed on Jun 6, 2021
This hotel doesn't skimp on freebies - guests receive free buffet breakfast, free self parking, and a free airport shuttle. Traveling on business? Take advantage ...