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Cheap flights from Seattle to Philadelphia (SEA - PHL) from $55

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — PHL
Apr 29 — May 61
From?
To?
Mon 4/29
Mon 5/6
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Philadelphia are usually found in October or January, booked 80 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Seattle to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2024.

Popular in

June

Cheapest in

October

Round-trip from

$225

One-way from

$109
High demand for flights, 29% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Seattle/Tacoma Intl to Philadelphia
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One-way flight from Seattle/Tacoma Intl to Philadelphia
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What is the cheapest day to fly round-trip from Seattle to Philadelphia?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 23% on the overall cost on flights from Seattle to Philadelphia.

How far in advance should I book a flight from Seattle to Philadelphia?

To save on the cost of your flight from Seattle to Philadelphia, book at least 50 days before your planned departure. Booking around this time can save you about 68% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $496 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $756.

What is the cheapest month to fly from Seattle to Philadelphia?

October is one of the best times of the year to fly to Philadelphia from Seattle. Prices for October average $417 per person but you can even find prices for as low as $149. The most expensive prices can be found in the month of June. Opting for a October flight can save you 41% on your journey compared to booking in June

When is the cheapest time to fly from Seattle to Philadelphia (SEA - PHL)?

A simple way to save on the total cost of your ticket is to fly from Seattle to Philadelphia in the afternoon. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the morning.

Cheap Frontier flights from Seattle to Philadelphia

Explore cheap flight options specifically provided by Frontier for the route between Seattle and Philadelphia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
Take a look at some of the lowest-priced Frontier flights heading from Seattle to Philadelphia. Be sure to come back soon if the deals available don't appeal to you at this time.
Fri 5/1710:24 pmSEA - PHL
1 stop28h 10mFrontier
Tue 6/41:04 pmPHL - SEA
1 stop9h 10mFrontier
Deal found 4/24$153
Thu 5/239:49 pmSEA - PHL
1 stop28h 45mFrontier
Sun 5/268:29 pmPHL - SEA
1 stop15h 11mFrontier
Deal found 4/24$158
Fri 5/1710:24 pmSEA - PHL
1 stop28h 10mFrontier
Tue 5/218:27 pmPHL - SEA
1 stop13h 37mFrontier
Deal found 4/23$172
Sat 5/42:55 pmSEA - PHL
1 stop11h 50mFrontier
Sat 5/188:27 pmPHL - SEA
1 stop13h 37mFrontier
Deal found 4/24$175
Fri 5/1010:34 pmSEA - PHL
2 stops18h 55mFrontier
Sat 5/188:27 pmPHL - SEA
1 stop13h 37mFrontier
Deal found 4/24$176
Tue 5/149:35 pmSEA - PHL
1 stop28h 49mFrontier
Tue 6/41:04 pmPHL - SEA
1 stop9h 10mFrontier
Deal found 4/24$178
Sat 5/1810:08 pmSEA - PHL
1 stop28h 26mFrontier
Tue 6/41:04 pmPHL - SEA
1 stop9h 10mFrontier
Deal found 4/24$181
Mon 5/138:20 amSEA - PHL
2 stops28h 29mFrontier
Tue 6/41:04 pmPHL - SEA
1 stop9h 10mFrontier
Deal found 4/24$184
Sat 5/42:55 pmSEA - PHL
1 stop11h 50mFrontier
Fri 5/171:15 pmPHL - SEA
1 stop11h 09mFrontier
Deal found 4/24$185

  • One of the most popular airlines traveling from Seattle to Philadelphia is Frontier. Flights from Frontier traveling this route typically cost $426.00 RT. This price is typically 36% cheaper than other airlines that offer Seattle to Philadelphia flights. When booking this route, the cheapest RT price found was $168. Seattle/Tacoma Intl Airport is the most common Seattle airport to take off from when flying to Philadelphia. Philadelphia Airport is the most popular arrival airport in Philadelphia. When flying from Seattle to Philadelphia, Frontier flights are 11% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from Seattle to Philadelphia

Explore cheap flight options specifically provided by Spirit Airlines for the route between Seattle and Philadelphia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
Browse through some of the cheapest Spirit Airlines flights traveling from Seattle to Philadelphia. Ensure the flight price, dates, time, and airline match your criteria before you book.
Sat 5/189:35 amSEA - PHL
1 stop17h 10mSpirit Airlines
Tue 6/42:05 pmPHL - SEA
1 stop21h 33mSpirit Airlines
Deal found 4/24$156
Tue 5/149:35 amSEA - PHL
2 stops34h 24mSpirit Airlines
Tue 5/282:05 pmPHL - SEA
1 stop21h 40mSpirit Airlines
Deal found 4/24$159
Sat 5/182:49 pmSEA - PHL
1 stop11h 56mSpirit Airlines
Tue 6/44:35 pmPHL - SEA
3 stops30h 01mSpirit Airlines
Deal found 4/24$168
Tue 5/149:40 pmSEA - PHL
2 stops22h 19mSpirit Airlines
Tue 5/285:19 pmPHL - SEA
2 stops18h 26mSpirit Airlines
Deal found 4/24$170
Tue 5/149:40 pmSEA - PHL
3 stops24h 02mSpirit Airlines
Tue 6/44:35 pmPHL - SEA
2 stops19h 03mSpirit Airlines
Deal found 4/24$171
Tue 5/149:40 pmSEA - PHL
3 stops24h 02mSpirit Airlines
Tue 5/285:19 pmPHL - SEA
2 stops18h 26mSpirit Airlines
Deal found 4/24$188
Tue 5/149:40 pmSEA - PHL
3 stops24h 02mSpirit Airlines
Tue 6/47:52 amPHL - SEA
3 stops27h 46mSpirit Airlines
Deal found 4/24$191
Tue 5/79:19 pmSEA - PHL
1 stop30h 11mSpirit Airlines
Tue 5/214:35 pmPHL - SEA
2 stops19h 10mSpirit Airlines
Deal found 4/24$201
Tue 5/79:19 pmSEA - PHL
2 stops22h 40mSpirit Airlines
Tue 5/214:35 pmPHL - SEA
2 stops19h 10mSpirit Airlines
Deal found 4/24$204

  • If you’re traveling from Seattle to Philadelphia, one of the more common airlines traveling that route is Spirit Airlines. Seattle to Philadelphia flights are typically 36% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $436.88 RT. The cheapest Spirit Airlines flight found for this route was $248. When traveling from Seattle to Philadelphia on Spirit Airlines, the most popular airport to depart from is Seattle/Tacoma Intl Airport and the most popular airport to arrive at is Philadelphia Airport. When flying from Seattle to Philadelphia, Spirit Airlines flights are 1% more popular than any other airline flying that same route.

Cheap Seattle to Philadelphia flights in April & May 2024

Find cheap flight options from Seattle to Philadelphia specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Prices were last updated on April 24, 2024.
The lowest fares we've come across on flights traveling from Seattle to Philadelphia in April and May 2024. Check back soon for alternative fares.
Fri 5/319:04 pmSEA - PHL
1 stop29h 01mFrontier
Sun 8/258:34 pmPHL - SEA
1 stop15h 03mFrontier
Deal found 4/23$238
Mon 4/295:02 pmSEA - PHL
1 stop9h 43mFrontier
Thu 5/168:17 pmPHL - SEA
1 stop28h 07mFrontier
Deal found 4/24$241
Fri 5/1010:34 pmSEA - PHL
2 stops18h 55mFrontier
Sat 5/251:15 pmPHL - SEA
1 stop10h 53mFrontier
Deal found 4/24$242
Tue 5/79:19 pmSEA - PHL
3 stops18h 09mSpirit Airlines
Tue 5/212:15 pmPHL - SEA
3 stops21h 30mSpirit Airlines
Deal found 4/24$243
Wed 5/299:40 pmSEA - PHL
2 stops17h 17mMultiple Airlines
Sun 6/23:35 pmPHL - SEA
1 stop20h 05mMultiple Airlines
Deal found 4/24$244
Tue 5/149:40 pmSEA - PHL
3 stops24h 02mMultiple Airlines
Mon 6/311:41 amPHL - SEA
1 stop25h 59mMultiple Airlines
Deal found 4/24$245
Sat 5/189:35 amSEA - PHL
3 stops30h 29mSpirit Airlines
Tue 6/44:35 pmPHL - SEA
2 stops30h 01mSpirit Airlines
Deal found 4/24$246
Tue 4/309:35 pmSEA - PHL
1 stop29h 00mFrontier
Sat 5/188:27 pmPHL - SEA
1 stop13h 37mFrontier
Deal found 4/24$247
Wed 5/14:45 pmSEA - PHL
2 stops21h 42mMultiple Airlines
Tue 5/148:00 amPHL - SEA
3 stops27h 45mMultiple Airlines
Deal found 4/24$248

Seattle to Philadelphia 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Philadelphia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
The lowest fares we've come across on flights traveling from Seattle to Philadelphia in April and May 2024. Check back soon for alternative fares.
Fri 5/319:04 pmSEA - PHL
1 stop29h 01mFrontier
Sun 8/258:34 pmPHL - SEA
1 stop15h 03mFrontier
Deal found 4/23$238
Sun 6/210:59 pmSEA - PHL
1 stop28h 40mFrontier
Thu 8/228:34 pmPHL - SEA
1 stop27h 37mFrontier
Deal found 4/23$239
Sun 6/29:39 pmSEA - PHL
1 stop11h 31mFrontier
Sun 8/258:34 pmPHL - SEA
1 stop15h 03mFrontier
Deal found 4/23$240
Mon 4/295:02 pmSEA - PHL
1 stop9h 43mFrontier
Thu 5/168:17 pmPHL - SEA
1 stop28h 07mFrontier
Deal found 4/24$241
Fri 5/1010:34 pmSEA - PHL
2 stops18h 55mFrontier
Sat 5/251:15 pmPHL - SEA
1 stop10h 53mFrontier
Deal found 4/24$242
Tue 5/79:19 pmSEA - PHL
3 stops18h 09mSpirit Airlines
Tue 5/212:15 pmPHL - SEA
3 stops21h 30mSpirit Airlines
Deal found 4/24$243
Wed 5/299:40 pmSEA - PHL
2 stops17h 17mMultiple Airlines
Sun 6/23:35 pmPHL - SEA
1 stop20h 05mMultiple Airlines
Deal found 4/24$244
Tue 5/149:40 pmSEA - PHL
3 stops24h 02mMultiple Airlines
Mon 6/311:41 amPHL - SEA
1 stop25h 59mMultiple Airlines
Deal found 4/24$245
Sat 5/189:35 amSEA - PHL
3 stops30h 29mSpirit Airlines
Tue 6/44:35 pmPHL - SEA
2 stops30h 01mSpirit Airlines
Deal found 4/24$246

Non-stop flights to Philadelphia from Seattle

Discover non-stop flight options from Seattle to Philadelphia. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
For a quicker trip, book one of these direct flights from Seattle to Philadelphia. Users can also choose from other Seattle to Philadelphia flights by using the search form above.
Sun 5/269:45 pmSEA - PHL
Nonstop5h 11mAlaska Airlines
Tue 6/47:03 pmPHL - SEA
Nonstop5h 53mAlaska Airlines
Deal found 4/24$288
Wed 5/229:49 amSEA - PHL
Nonstop5h 14mAlaska Airlines
Wed 5/297:03 pmPHL - SEA
Nonstop5h 53mAlaska Airlines
Deal found 4/24$297
Sun 5/269:45 pmSEA - PHL
Nonstop5h 11mAlaska Airlines
Sat 6/87:03 pmPHL - SEA
Nonstop5h 53mAlaska Airlines
Deal found 4/24$308
Sat 5/189:45 pmSEA - PHL
Nonstop5h 11mAlaska Airlines
Wed 6/57:21 amPHL - SEA
Nonstop5h 46mAlaska Airlines
Deal found 4/24$317
Thu 6/2011:35 pmSEA - PHL
Nonstop5h 10mAmerican Airlines
Tue 8/276:30 pmPHL - SEA
Nonstop6h 03mAmerican Airlines
Deal found 4/24$332
Sun 5/269:45 pmSEA - PHL
Nonstop5h 11mAlaska Airlines
Thu 6/67:03 pmPHL - SEA
Nonstop5h 53mAlaska Airlines
Deal found 4/24$333
Sat 5/189:45 pmSEA - PHL
Nonstop5h 11mAlaska Airlines
Sat 6/87:03 pmPHL - SEA
Nonstop5h 53mAlaska Airlines
Deal found 4/24$337
Wed 5/229:49 amSEA - PHL
Nonstop5h 14mAlaska Airlines
Sun 5/267:21 amPHL - SEA
Nonstop5h 46mAlaska Airlines
Deal found 4/24$342
Sat 5/1810:55 pmSEA - PHL
Nonstop5h 12mAmerican Airlines
Tue 6/46:45 pmPHL - SEA
Nonstop6h 05mAmerican Airlines
Deal found 4/24$357

Seattle to Philadelphia flights leaving soon

Find last-minute flight options from Seattle to Philadelphia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
Consider one of these great deals we found on last-minute flights from Seattle to Philadelphia. Users should be sure to double check the price, date, and time of their last-minute flight.
Mon 4/295:02 pmSEA - PHL
1 stop9h 43mFrontier
Thu 5/168:17 pmPHL - SEA
1 stop28h 07mFrontier
Deal found 4/24$241
Mon 4/295:02 pmSEA - PHL
1 stop9h 43mFrontier
Fri 5/171:15 pmPHL - SEA
1 stop11h 09mFrontier
Deal found 4/24$244
Wed 5/14:45 pmSEA - PHL
1 stop15h 01mMultiple Airlines
Tue 5/144:35 pmPHL - SEA
2 stops19h 10mMultiple Airlines
Deal found 4/24$246
Tue 4/309:35 pmSEA - PHL
1 stop29h 00mFrontier
Sat 5/188:27 pmPHL - SEA
1 stop13h 37mFrontier
Deal found 4/24$247
Wed 5/14:45 pmSEA - PHL
2 stops21h 42mMultiple Airlines
Tue 5/148:00 amPHL - SEA
3 stops27h 45mMultiple Airlines
Deal found 4/24$248
Sat 5/49:32 pmSEA - PHL
1 stop29h 03mMultiple Airlines
Wed 5/2211:50 amPHL - SEA
1 stop7h 50mMultiple Airlines
Deal found 4/24$249
Tue 4/309:35 pmSEA - PHL
1 stop29h 00mFrontier
Fri 5/171:15 pmPHL - SEA
1 stop11h 09mFrontier
Deal found 4/24$251
Mon 4/295:02 pmSEA - PHL
1 stop9h 43mMultiple Airlines
Tue 5/71:25 pmPHL - SEA
1 stop22h 20mMultiple Airlines
Deal found 4/24$256
Fri 5/36:03 pmSEA - PHL
1 stop8h 42mMultiple Airlines
Fri 5/174:31 pmPHL - SEA
2 stops19h 14mMultiple Airlines
Deal found 4/24$260

One-way flights to Philadelphia from Seattle

Search for one-way flight options from Seattle to Philadelphia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
Users traveling one-way from Seattle to Philadelphia can select one of these great deals. Those needing a return flight from Seattle to Philadelphia can use the search form above.
Thu 5/239:49 pmSEA - PHL
1 stop28h 45mFrontier
Deal found 4/24$55
Thu 5/239:49 pmSEA - PHL
1 stop28h 45mFrontier
Deal found 4/24$56
Fri 5/1710:24 pmSEA - PHL
1 stop28h 10mFrontier
Deal found 4/23$65
Sun 5/198:04 amSEA - PHL
1 stop18h 30mFrontier
Deal found 4/24$66
Sat 5/182:49 pmSEA - PHL
1 stop11h 56mSpirit Airlines
Deal found 4/24$75
Tue 5/218:14 pmSEA - PHL
1 stop12h 56mFrontier
Deal found 4/24$81
Thu 5/169:30 amSEA - PHL
1 stop23h 40mFrontier
Deal found 4/24$87
Sun 5/199:39 pmSEA - PHL
1 stop11h 31mFrontier
Deal found 4/24$91
Fri 5/106:03 pmSEA - PHL
2 stops23h 26mFrontier
Deal found 4/24$100

Find flights from Seattle to Philadelphia within your budget

Customize your flight search to find flights from Seattle to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$153 - $308

Route

Depart

Return

Price

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Fri 5/17

1 stop28h 10m

Philadelphia

Tue 6/4

1 stop9h 10m

$153

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Sat 5/18

1 stop17h 10m

Philadelphia

Tue 6/4

1 stop21h 33m

$156

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 5/23

1 stop28h 45m

Philadelphia

Sun 5/26

1 stop15h 11m

$158

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Tue 5/14

2 stops34h 24m

Philadelphia

Tue 5/28

1 stop21h 40m

$159

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Sat 5/18

1 stop11h 56m

Philadelphia

Tue 6/4

3 stops30h 01m

$168

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Fri 5/17

1 stop28h 10m

Philadelphia

Tue 5/21

1 stop13h 37m

$172

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Thu 5/16

1 stop16h 54m

Philadelphia

Tue 6/4

1 stop21h 33m

$177

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Wed 5/22

1 stop14h 51m

Philadelphia

Wed 5/29

1 stop7h 50m

$260

Seattle/Tacoma IntlPhiladelphia

SEA - PHL

SEAPHL

Seattle/Tacoma Intl

Sun 5/26

Nonstop5h 11m

Philadelphia

Sat 6/8

Nonstop5h 53m

$308

Flights are sorted by cheapest first

Deals found on 4/24

When is the best time to book a flight from Seattle to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Philadelphia. Price data was last updated on January 28, 2024.
The best time to book flights from Seattle to Philadelphia is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Seattle to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Philadelphia. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Philadelphia flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Philadelphia by month

Plan your trip from Seattle to Philadelphia by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Philadelphia is currently $75 while a round-trip flight costs $190. Price data was last updated on April 21, 2024.

Currently, October is the cheapest month in which you can book a flight from Seattle to Philadelphia (average of $225). Flying from Seattle to Philadelphia in June is currently the most expensive (average of $318). 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.

January

$258

February

$258

March

$281

April

$277

May

$287

June

$318

July

$314

August

$258

September

$247

October

$225

November

$268

December

$253

Temperature and rainfall in Philadelphia by month

Plan your trip to Philadelphia by taking into account the average temperature and rainfall totals by month.

PHL

Temperature

33.8 - 78.8 °F

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated April 24, 2024.
Read reviews from past customers who have flown Frontier, Spirit Airlines and Sun Country Air from Seattle to Philadelphia. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Alaska Airlines
8.1
Very good
9,110 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Delta
8.1
Very good
11,004 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

United Airlines
7.4
Good
11,255 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

American Airlines
7.3
Good
14,898 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Sun Country Air
7.3
Good
663 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Comfort

7.9

Food

7.3

Overall

8.1

Boarding

8.2

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Philadelphia?

    To fly from Seattle to Philadelphia, you need to book a flight from Seattle/Tacoma Intl (SEA) to Philadelphia (PHL). Nonstop flights to Philadelphia from Seattle/Tacoma Intl take 4h 58m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from Seattle/Tacoma Intl to Philadelphia offered by 7 different airlines.

  • Can I find flights from Seattle to Philadelphia for under $200 on Cheapflights?

    Yes, there are multiple flights from Seattle to Philadelphia for under $200. The cheapest flight booked recently is on Frontier for just $153, but on average you can expect to pay $175.

  • Are there nonstop flights from Seattle to Philadelphia for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Seattle to Philadelphia under $300. A good price for a nonstop flight from Seattle to Philadelphia is less than $357.

  • Are there last-minute flights available from Seattle to Philadelphia for under $300?

    There are currently 20+ open flights from Seattle to Philadelphia within the next 7 days for less than $300.

  • What days are nonstop flights available from Seattle to Philadelphia?

    Nonstop flights can be found on the following days: Thursday.

  • How popular is this Seattle to Philadelphia flight route?

    Flights from Seattle/Tacoma Intl to Philadelphia have been viewed 2 times in the past calendar month.

  • How many flights depart from Seattle to Philadelphia on average per day?

    On average 2 flights depart from Seattle to Philadelphia per day.
    Morning (6am - Noon) - 100% of flight departures

  • How long is the flight from Seattle to Philadelphia?

    Airlines like Frontier and Spirit Airlines fly from Seattle to Philadelphia in about 17h 10m. The time it takes to get you to your destination can typically vary by up to 11h. Seattle and Philadelphia are separated by a distance of 2385 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Philadelphia round-trip?

    Currently priced at $153, Frontier will fly you from Seattle to Philadelphia and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Spirit Airlines for as low as $156. Frontier is currently priced 63% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Philadelphia one-way?

    One-way options have recently been found by users for as low as $55 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $75 and Sun Country Air from $109 one-way.

  • What are the most popular airlines that fly from Seattle to Philadelphia?

    American Airlines, Alaska Airlines and JetBlue are the most popular airlines when flying from Seattle to Philadelphia.

  • What are the most reliable airlines from Seattle to Philadelphia?

    No one likes to see their flight delayed. When booking a flight from Seattle to Philadelphia consider choosing American Airlines (83%), Air Tahiti Nui (80%) or Alaska Airlines (50%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Philadelphia?

    Looking at all options, your cheapest flight can be booked for $139. While the most popular route (Seattle/Tacoma Intl - Philadelphia) can be booked for $204 on average our data indicates $624 when flying from Seattle to Philadelphia.

  • What does SEA to PHL mean?

    Seattle/Tacoma Intl Airport is SEA and Philadelphia Airport is PHL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Where are the most common layover locations when flying from Seattle to Philadelphia?

    Flights departing from Seattle and landing in Philadelphia layover in Denver most frequently.

  • What are some popular things to do or see while on a layover in Denver?

    Coors Field, 16th Street Mall, and Civic Center Park are the most popular attractions in Denver if you're in need of something to do during your layover. Coors Field, 16th Street Mall and Civic Center Park are located about 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl if you are interested in checking them out. Those on a layover in Denver in need of a rental car can book one at Denver Intl for about $47.

  • Where are the least popular layover locations for Seattle to Philadelphia flights?

    Seattle to Philadelphia flights that have layovers will least frequently stop in Salt Lake City.

  • Can I find deals for flights from Seattle to Philadelphia that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Philadelphia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Philadelphia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Philadelphia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Philadelphia that include hotel bookings?

    Yes. In addition to deals on Seattle to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Philadelphia.

  • Can I find deals for business class flights from Seattle to Philadelphia?

    Yes. Cheapflights offers flight deals from Seattle to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Seattle to Philadelphia that allow pets onboard?

    Many airlines flying from Seattle to Philadelphia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Philadelphia?

    Yes, you can often find last-minute deals on Seattle to Philadelphia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Philadelphia flight deals updated?

    The Seattle to Philadelphia flight deals you see on this page were last updated on 4/24.

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See prices for flight routes from nearby airports that may be better suited for you.

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Top 7 airlines flying from Seattle to Philadelphia

Discover the top 7 airlines that operate flights from Seattle to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$114Average$228FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Spirit AirlinesCheapest$116Average$291FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
FrontierCheapest$116Average$269FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Alaska AirlinesCheapest$168Average$426FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapest$169Average$398FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$188Average$452FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$248Average$437FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from Seattle to Philadelphia by cabin class

Find flights from Seattle to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Seattle to Philadelphia

Find hourly flight availability from Seattle to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2024.
1%of flight departuresEarly morningMidnight to 6 am
26%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
73%of flight departuresEvening6 pm to midnight
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6 AM
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Weekly flight availability from Seattle to Philadelphia

Explore weekly flight availability from Seattle to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 24, 2024.
Sunday4daily flights
Monday4daily flights
Tuesday4daily flights
Wednesday4daily flights
Thursday1daily flight
Friday4daily flights
Saturday4daily flights

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Need flexible booking options for your flight to Philadelphia from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Philadelphia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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