Frontier offers extra comfort seats with 32” separation for a fee, enhancing short flight comfort.
Frontier’s Zone 1 boarding is available with a carry-on purchase or special fare bundle.
Round-trip from | $104 (Frontier) |
---|---|
One-way from | $70 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $174 |
Fly from
Fly to
Route
Depart
Return
Price
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Thu 12/4
7:50 pm-11:51 pm
Nonstop3h 01m
Phoenix Sky Harbor Intl
Sun 12/7
8:00 am-10:20 am
Nonstop3h 20m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Wed 10/22
5:00 pm-10:20 pm
1 stop5h 20m
Phoenix Sky Harbor Intl
Sun 10/26
10:10 pm-1:10 am
Nonstop3h 00m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Fri 12/12
6:45 pm-12:05 am
1 stop4h 20m
Phoenix Sky Harbor Intl
Sun 12/14
6:00 am-10:20 am
1 stop5h 20m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Wed 11/12
7:59 pm-11:51 pm
Nonstop2h 52m
Phoenix Sky Harbor Intl
Wed 11/19
9:06 am-11:25 am
Nonstop3h 19m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Sat 11/15
7:50 pm-11:47 pm
Nonstop2h 57m
Phoenix Sky Harbor Intl
Tue 11/18
4:41 pm-6:57 pm
Nonstop3h 16m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Sat 11/22
6:50 pm-10:40 pm
Nonstop2h 50m
Phoenix Sky Harbor Intl
Sat 11/29
10:29 pm-12:44 am
Nonstop3h 15m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Sat 11/8
7:30 pm-11:21 pm
Nonstop2h 51m
Phoenix Sky Harbor Intl
Wed 11/12
2:45 pm-5:00 pm
Nonstop3h 15m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Sat 11/8
7:30 pm-11:21 pm
Nonstop2h 51m
Phoenix Sky Harbor Intl
Tue 11/11
7:56 pm-10:16 pm
Nonstop3h 20m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Sat 10/18
7:35 pm-10:26 pm
Nonstop2h 51m
Phoenix Sky Harbor Intl
Wed 10/22
7:05 am-10:20 am
Nonstop3h 15m
SeattlePhoenix
SEA - PHX
SEAPHX
Seattle/Tacoma Intl
Tue 10/28
8:50 am-11:43 am
Nonstop2h 53m
Phoenix Sky Harbor Intl
Sun 11/2
5:20 am-7:34 am
Nonstop3h 14m
To ensure you get the cheapest price possible for a flight from Seattle to Phoenix, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, January is the cheapest month in which you can book a flight from Seattle to Phoenix (average of $258). Flying from Seattle to Phoenix in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
One of the essential ways to save on airfare from Seattle to Phoenix is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.
Travelers seeking maximum savings on their Seattle to Phoenix flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from SEA to PH1 are scheduled on a Thursday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Anonymous,Sep 2025
SEA - MKE
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
Anonymous,Sep 2025
SEA - MKE
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$35 | Average$146 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$72 | Average$142 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$83 | Average$209 | FlexibilityNo cancel fee | On-time85% | |
Cheapest$96 | Average$317 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$97 | Average$232 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$129 | Average$268 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$170 | Average$319 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$236 | Average$401 | FlexibilityNo cancel fee | On-time69% |