Delta offers free Wi-Fi for SkyMiles members on domestic flights, enhancing onboard connectivity.
Delta's Comfort Plus seats provide up to three extra inches of legroom compared to Main Cabin.
Planning a trip from Sky Harbor Intl to Seattle? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.
Traveling from Phoenix Sky Harbor Airport to Seattle can be more affordable if you know when and how to book your flight. Generally, Tuesdays are the cheapest day of the week to fly, while September is the cheapest month.
Day Selection: Choose to fly on Tuesdays for the best rates.
Month Selection: Opt for September flights for lower prices.
Booking Advance: Book your flight at least 64 days in advance to get the best deal.
Airline Choice: Frontier Airlines generally offers the cheapest flights for this route.
Flight Type: Direct flights are typically more expensive, consider flights with layovers to save money.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
Low season | February |
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High season | July |
Cheapest flight | $43 |
Find which airlines fly direct from Phoenix Sky Harbor Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.
Direct departures
Phoenix Sky Harbor Intl to Seattle/Tacoma Intl
Monday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
Tuesday
Air France, Air Tahiti Nui, Alaska Airlines, +13 more
Air France, Air Tahiti Nui, +14 more
12
13
Wednesday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
Thursday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
Friday
Air France, Air Tahiti Nui, Alaska Airlines, +14 more
Air France, Air Tahiti Nui, +15 more
13
14
Saturday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
Sunday
Air France, Air Tahiti Nui, Alaska Airlines, +14 more
Air France, Air Tahiti Nui, +15 more
13
14
Direct returns
Seattle/Tacoma Intl to Phoenix Sky Harbor Intl
Monday
Air France, Air Tahiti Nui, Alaska Airlines, +14 more
Air France, Air Tahiti Nui, +15 more
13
14
Tuesday
Air France, Air Tahiti Nui, Alaska Airlines, +14 more
Air France, Air Tahiti Nui, +15 more
13
14
Wednesday
Air France, Air Tahiti Nui, Alaska Airlines, +14 more
Air France, Air Tahiti Nui, +15 more
13
14
Thursday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
Friday
Air France, Air Tahiti Nui, Alaska Airlines, +14 more
Air France, Air Tahiti Nui, +15 more
13
14
Saturday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
Sunday
Air France, Air Tahiti Nui, Alaska Airlines, +15 more
Air France, Air Tahiti Nui, +16 more
14
15
It was all great all around. Will travel with Alaska next trip.
It was all great all around. Will travel with Alaska next trip.
There was no seating at the gate, no where to charge your devices, super crowded. Boarding in group F meant all luggage space was taken when it was time for me to board. The boarding crew was short with everyone and seemed irritated. The luggage space was insufficient, the seat was too small for me (6'4") and very uncomfortable trip. I was in a middle seat between a person snoring the whole trip and a person with very strong body odor. The flight crew was terse and unfriendly, seemed irritated and impatient. Yelled a lot at people with earbuds in, understandable. Finally, we arrived 10 minutes early, only to sit on the tarmac for 20 minutes and wait for a gate. Worst flight experience I've had in years.
Flight 351 SEA to BOI was terrible. We got to cruising altitude and I needed to use the restroom but the fasten seatbelt sign never came off. There was no turbulence and I'd felt the plane level off so I stood up to use the restroom about 15 minutes after we leveled off. The stewardess went over the intercom and said I needed to be seated because the captain hadn't turned off the fasten seatbelt sign....Which... Fair.... But not five minutes later she went and used the bathroom. Felt very unprofessional to leave a paying customer with a burning urethra for the entire flight and bark at them to sit down and still use the bathroom yourself. They never did turn off the seatbelt sign.
For longer trips, snacks are puny, boring and don’t have ANY nutritional value.
Upgraded to first class both times .The flight attendant Spicy Tim.was excellent and very amusing.
Close boarding too early we’re willing to not let people on flight that could not check in. What ever happened to customer service? Three of us had to fight to get on plane shameful
Made us check our carry on,even though there was plenty of room because they didn't check with the flight crew. Also boarding was 40min late, due to the plane being on the wrong side of the airport. Also their app didn't record my tsa precheck
The flight was delayed due to a safety check. Why couldn't that have been done ahead of time? We got to Seattle with enough time to make our connecting flight but they kept changing the gate so we missed it. There were at least ten of us who missed the flight. The airline was aware. They could have waited. They didn't. Our new flight was not for seven hours and then was delayed another two hours. We got the last seats which don't recline. Super uncomfortable after a long day spent at the worst airport. Did they offer us a meal voucher or anything? On top of that Alaska Airlines didn't complete my ticket to the new flight. I wasn't sure I would get on this horrible flight, either. Oh, and it's ten o'clock at night....no food. Is this how Alaska Airlines treats its customers? I'll never fly with this airline again.
It was very comfortable. Personal entertainment screens would, of course, have been nice. And the flight in Seattle was delayed, but... things happen. All in all, I like Alaska Airlines very much.
Flying sucks these days. No airline is better than another. Alaska Air At least gives you some pretzel snacks. That is about all I can say for it.
It is southwest seat was ok. Not the most comfortable seat
I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight
The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.
Plz don't take away free bags and free seating
The seats were a bit cramped and worn, but otherwise okay.
I would have liked to arrive on time - not 5 hours late!
After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!
It was a perfect flight in all aspects! Both legs!
Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.
Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.
Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.
Crew was friendly Love the entertainment in the seat head rest.
Delta flight was on time, seats were comfortable, and crew was nice.
This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.
Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.
The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.
A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.
Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.
The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.
The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.
First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.
Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time
Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!
Bigger seats. Board back to front! Disembark front to back!
It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.
Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.
Service in first class no longer exists on American Airlines .
My seat was very worn. Otherwise I had an excellent flight
Boarding can be more efficiently done by having the back row passengers board first. This way, the other people do the have to wait for front row passengers to load their luggage in the overhead cabins. Food is simply pathetic for the price I paid. Cleanliness is simply poor; my seat was full of crumps.
Always a great flight on AA. PHX to DFW and vise versa is always going to be a pretty full flight but the crew handles it phenomenally.
The reps working at the airport counter were dumber than a second coat of paint.
My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks
Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.
The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.
The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.
It was a short flight so no food or entertainment….
Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.
I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!
Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service
The worst flight of my life. Never will I fly frontier again
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