How do most travelers feel about Delta?

Cheapflights users who travel with Delta (a popular airline from Philadelphia to Seattle) have rated them a 7.6/10. This rating comes from 4,552 reviews. If you are looking to travel PHL-SEA, search your dates above.

Can I get a flight from Philadelphia to Seattle on Delta for under $500?

Cheapflights users have found 4 Delta flights for under $500 on the PHL-SEA route. Prices on flights to Seattle from Philadelphia can vary based on many factors including dates. To look at price based on your preferred dates, click here.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Fly Delta from PHL to SEA as low as $183

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Cheapflights users flying from Philadelphia to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Philadelphia. Select your dates above for pricing.

Delta flights from Philadelphia to Seattle in 2024

Popular in	June
Cheapest in	October
Average price (all airlines)	$437
One-way from	$183
Round-trip from	$306

Highest demand for flights from Philadelphia to Seattle/Tacoma Intl; 25% potential price increase.

Search Deals

Best time to find cheap flights from Philadelphia to Seattle/Tacoma Intl; 4% potential price drop.

Search Deals

Average price for all Philadelphia to Seattle/Tacoma Intl flights (one-way and round-trip).

Search Deals

Cheapest one-way Delta flight from Philadelphia to Seattle/Tacoma Intl

Search Deals

Cheapest round-trip Delta flight from Philadelphia to Seattle/Tacoma Intl

Search Deals

Can I get a flight from Philadelphia to Seattle on Delta for under $500?
Cheapflights users have found 4 Delta flights for under $500 on the PHL-SEA route. Prices on flights to Seattle from Philadelphia can vary based on many factors including dates. To look at price based on your preferred dates, click here.
How do most travelers feel about Delta?
Cheapflights users who travel with Delta (a popular airline from Philadelphia to Seattle) have rated them a 7.6/10. This rating comes from 4,552 reviews. If you are looking to travel PHL-SEA, search your dates above.

Cheapest Delta flights from Philadelphia to Seattle

Tue 6/47:05 amPHL - SEA

1 stop8h 15mDelta

Fri 8/3012:30 amSEA - PHL

1 stop7h 06mDelta

Deal found 5/4$311

Pick Dates

Fri 5/316:55 pmPHL - SEA

1 stop8h 04mDelta

Wed 6/512:40 amSEA - PHL

1 stop6h 55mDelta

Deal found 5/3$321

Pick Dates

Tue 6/184:46 pmPHL - SEA

1 stop8h 38mDelta

Wed 6/197:13 pmSEA - PHL

1 stop7h 47mDelta

Deal found 5/4$326

Pick Dates

Last minute deals on Cheapflights

Fri 5/103:05 pmPHL - SEA

1 stop8h 09mDelta

Fri 5/2412:40 amSEA - PHL

1 stop8h 12mDelta

Deal found 5/3$602

Pick Dates

Sun 5/125:20 amPHL - SEA

1 stop8h 12mDelta

Sat 5/1812:40 amSEA - PHL

1 stop6h 55mDelta

Deal found 5/3$653

Pick Dates

Tue 5/146:00 amPHL - SEA

1 stop7h 42mDelta

Thu 5/1612:40 amSEA - PHL

1 stop6h 55mDelta

Deal found 5/3$673

Pick Dates

One-way Delta flights to Seattle from Philadelphia

Thu 7/116:26 pmPHL - SEA

1 stop8h 33mDelta

Deal found 5/3$183

Pick Dates

Thu 8/16:26 pmPHL - SEA

1 stop8h 33mDelta

Deal found 5/3$208

Pick Dates

Tue 6/116:00 amPHL - SEA

2 stops15h 39mDelta

Deal found 5/3$238

Pick Dates

Average price of Delta flights from Philadelphia to Seattle

Currently, the most affordable month to book a Delta flight from Philadelphia to Seattle in December, with an average price of $245. Conversely, traveling with Delta from Philadelphia to Seattle in July will be the most expensive, with an average cost of $408. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

January

$247

February

$254

March

$288

April

$294

May

$320

June

$406

July

$408

August

$343

September

$278

October

$257

November

$258

December

$245

Temperature and rainfall in Seattle by month

SEA Temperature	41 - 66.2 °F

SEA

Temperature

41 - 66.2 °F

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Browse thousands of different options on Cheapflights for your next trip

Fly from Philadelphia to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

American Airlines flights from Philadelphia to Seattle/Tacoma Intl

Alaska Airlines flights from Philadelphia to Seattle/Tacoma Intl

Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Seattle car rentals

Seattle/Tacoma Intl Airport car rentals

Kenmore Air Harbor Airport car rentals

Spokane car rentals

Bellingham car rentals

Pasco car rentals

Walla Walla car rentals

Yakima car rentals

Wenatchee car rentals

Pullman car rentals

Capitol Hill car rentals

West Seattle car rentals

Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Flights to New York

Flights to Los Angeles

Flights to Fort Lauderdale

Flights to San Francisco

Popular flights with Delta
Browse through some of the most popular routes that Delta offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Delta flights from New York to Paris

Delta flights from New York to Denver

Delta flights from Minneapolis to Las Vegas

Delta flights from John F Kennedy Intl to Santiago de los Caballeros

Delta flights from Boston to Las Vegas

Delta flights from New York to Tampa

Delta flights from New York to Fort Lauderdale

Delta flights from San Francisco to Los Angeles

Delta flights from Los Angeles to San Francisco

Delta flights from Boston to Atlanta

Delta flights from Boston to Orlando

Delta flights from Seattle to Sky Harbor Intl

Delta flights from New York to Atlanta

Delta flights from John F Kennedy Intl to Fort Lauderdale

Delta flights from Los Angeles to Seattle

Delta flights from Boston to Luis Munoz Marin Intl

Delta flights from Los Angeles to Orlando

Delta flights from New York to Luis Munoz Marin Intl

Delta flights from Atlanta to Las Vegas

Delta flights from John F Kennedy Intl to Santo Domingo

Delta flights from Boston to Los Angeles

Delta flights from Los Angeles to New Orleans

Delta flights from Portland to Los Angeles

Delta flights from New York to Orlando

Delta flights from Seattle to Los Angeles

Delta flights from Boston to Tampa

Delta flights from New York to New Orleans

Delta flights from New York to Tel Aviv

Delta flights from Los Angeles to Portland

Delta flights from Los Angeles to Las Vegas

See what others are saying about Delta

Delta

8.0

Very good

10,848 reviews

Check prices

Overview

Recent reviews

3.9

Poor|Oct 2021

There were complications with my flights boarding in spokane and my secondary flight was changed without my consent to one that boarded at the same time as my first flight let me out on the opposite side of the massivr layover airport. It was only because an employee saw my struggle and confusion and hooked me up with a ride that I even made the flight dispite delta's best efforts. My TV's headphone jack on my first flight was also busted which sucked to find out after buying headphones on the flight. About halfway through the flight one of the attendants moved me to a seat with a working TV. Long story short Delta as an airline was terrible but their employees did their best to help me with what limited options they had to work with.

6.0

Okay|Apr 2022

No entertainment, five hour flight and choice of pretzels or a cookie. Still a place to put your cigarette in the restroom on board. How old is the plane?

5.9

Fair|Oct 2021

The staff was the highlight. Only thing that could have been better was the temperature on the flight from Hawaii to Seattle. The plane was too cold to get comfortable

10.0

Wonderful|Aug 2021

No complaints!!

2.0

Poor|Nov 2021

KLM flight sucks! Not very active about telling passengers to put in their mask over the nose. 🙄

1 out of 3616

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

View all available airlines

Cheapflights users flying from Philadelphia to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Philadelphia. Select your dates above for pricing.

Delta flights from Philadelphia to Seattle in 2024

Find detailed information about Delta flights from Philadelphia to Seattle. Explore the options provided by Delta to plan your journey from Philadelphia to Seattle. Data last updated May 4, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Philadelphia to Seattle on Delta for under $500?

How do most travelers feel about Delta?

Cheapest Delta flights from Philadelphia to Seattle

Last minute deals on Cheapflights

One-way Delta flights to Seattle from Philadelphia

Average price of Delta flights from Philadelphia to Seattle

Plan your Delta flight from Philadelphia to Seattle by taking into account the cheapest months to travel. The average price of a one-way Delta flight from Philadelphia to Seattle is currently $210 while a round-trip flight costs $0. Price data was last updated on April 28, 2024.

Temperature and rainfall in Seattle by month

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Philadelphia to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Other Delta flights from Philadelphia
Browse through other Delta flights departing from Philadelphia. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Browse through other Delta flights departing from Philadelphia. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Other airlines servicing Philadelphia and Seattle
Choose from other airlines serving Philadelphia and Seattle.

Choose from other airlines serving Philadelphia and Seattle.

Other popular destinations in North America
If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

If Seattle is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Popular flights with Delta
Browse through some of the most popular routes that Delta offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Browse through some of the most popular routes that Delta offers at this time. Flights are based on user searches made on Cheapflights and were last updated on May 4, 2024.

See what others are saying about Delta

Overview

Recent reviews

100% Free

Book with Flexibility

Travel Smart

Flights

Delta flights from Philadelphia to Seattle (PHL - SEA)

Cheapflights users flying from Philadelphia to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Philadelphia. Select your dates above for pricing.

Delta flights from Philadelphia to Seattle in 2024

Find detailed information about Delta flights from Philadelphia to Seattle. Explore the options provided by Delta to plan your journey from Philadelphia to Seattle. Data last updated May 4, 2024.

Popular in

Cheapest in

Average price (all airlines)

One-way from

Round-trip from

Can I get a flight from Philadelphia to Seattle on Delta for under $500?

How do most travelers feel about Delta?

Cheapest Delta flights from Philadelphia to Seattle

Last minute deals on Cheapflights

One-way Delta flights to Seattle from Philadelphia

Average price of Delta flights from Philadelphia to Seattle

Plan your Delta flight from Philadelphia to Seattle by taking into account the cheapest months to travel. The average price of a one-way Delta flight from Philadelphia to Seattle is currently $210 while a round-trip flight costs $0. Price data was last updated on April 28, 2024.

Temperature and rainfall in Seattle by month

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Philadelphia to Seattle on another airlineConsider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.

See what others are saying about Delta

Overview

100% Free

Book with Flexibility

Travel Smart

Fly from Philadelphia to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 4, 2024.