Alaska Airlines

ASA370 / AS370

ICAO: ASA370 IATA: AS370

Click here to see all flights

Flight schedule

Select flight date

Departure

Arrive

Aircraft

Effective

Avalibility

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2026-08-19

Valid to

2026-08-25

sun

mon

tue

wed

thu

fri

sat

Every day of the week except Mondays and Fridays

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

163

First class

Economy

149

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2026-08-21

Valid to

2026-08-31

sun

mon

tue

wed

thu

fri

sat

Mondays and Fridays

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

163

First class

Economy

149

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-08-26

Valid to

2026-09-02

sun

mon

tue

wed

thu

fri

sat

Every Wednesday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2026-08-27

Valid to

2026-09-03

sun

mon

tue

wed

thu

fri

sat

Every Thursday, Saturday and Sunday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

163

First class

Economy

149

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-01

Valid to

2026-09-06

sun

mon

tue

wed

thu

fri

sat

Every Tuesday, Saturday and Sunday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Operates only

2026-09-04

sun

mon

tue

wed

thu

fri

sat

Every Friday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

163

First class

Economy

149

07:02

Philadelphia (PHL) TD

09:53

Seattle (SEA)

Boeing 737MAX 9 Passenger

Operates only

2026-09-07

sun

mon

tue

wed

thu

fri

sat

Every Monday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-08

Valid to

2026-09-10

sun

mon

tue

wed

thu

fri

sat

Tuesdays and Thursdays

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-09

Valid to

2026-09-16

sun

mon

tue

wed

thu

fri

sat

Every Wednesday, Saturday and Sunday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Operates only

2026-09-11

sun

mon

tue

wed

thu

fri

sat

Every Friday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

163

First class

Economy

149

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-14

Valid to

2026-09-18

sun

mon

tue

wed

thu

fri

sat

Every Monday, Thursday and Friday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-15

Valid to

2026-09-22

sun

mon

tue

wed

thu

fri

sat

Every Tuesday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-19

Valid to

2026-09-27

sun

mon

tue

wed

thu

fri

sat

Every Thursday, Saturday and Sunday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-21

Valid to

2026-09-23

sun

mon

tue

wed

thu

fri

sat

Mondays and Wednesdays

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-25

Valid to

2026-09-28

sun

mon

tue

wed

thu

fri

sat

Mondays and Fridays

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

AY 4574

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737MAX 9 Passenger

Begins

2026-09-29

Valid to

2026-10-01

sun

mon

tue

wed

thu

fri

sat

Every Tuesday, Wednesday and Thursday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

178

First class

Economy

162

07:00

Philadelphia (PHL) TD

09:51

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Operates only

2026-10-02

sun

mon

tue

wed

thu

fri

sat

Every Friday

Alaska Airlines

ASA370

Duration

5h 51m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Entertainment on-demand, In-seat power source, Wi-Fi

Seats

163

First class

Economy

149

07:00

Philadelphia (PHL) TD

09:55

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2026-10-03

Valid to

2026-10-31

sun

mon

tue

wed

thu

fri

sat

Every weekday

Alaska Airlines

ASA370

Duration

5h 55m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Wi-Fi

Seats

163

First class

Economy

149

07:00

Philadelphia (PHL) TD

10:08

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2026-11-01

Valid to

2026-11-19

sun

mon

tue

wed

thu

fri

sat

Every weekday

Alaska Airlines

ASA370

Duration

6h 08m

Distance

2385 mi, 3837 km

Coreshare

Same day flight

Yes

Terminal

Departure: TD

Meals

Onboard services

Wi-Fi

Seats

163

First class

Economy

149

18:07

Spokane (GEG)

19:22

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2026-11-20

Valid to

2027-03-13

sun

mon

tue

wed

thu

fri

sat

Every weekday

Alaska Airlines

ASA370

Duration

1h 15m

Distance

224 mi, 360 km

Coreshare

JX 7087 /QR 8799

Same day flight

Yes

Terminal

Meals

Onboard services

Wi-Fi

Seats

163

First class

Economy

149

18:07

Spokane (GEG)

19:22

Seattle (SEA)

Boeing 737-900 (winglets) Passenger/BBJ3

Begins

2027-03-14

Valid to

2027-03-16

sun

mon

tue

wed

thu

fri

sat

Every Monday, Tuesday and Sunday

Alaska Airlines

ASA370

Duration

1h 15m

Distance

224 mi, 360 km

Coreshare

JX 7087 /QR 8799

Same day flight

Yes

Terminal

Meals

Onboard services

Wi-Fi

Seats

163

First class

Economy

149

TERMINAL D

According to schedule

Live tracker

PHL

Philadelphia, US

left TERMINAL D

Philadelphia - PHL

WEDNESDAY 03-JUN-2026

07:02 GMT-0400

SEA

Seattle, US

arrives TERMINAL N/A

Seattle - SEA

WEDNESDAY 03-JUN-2026

09:53 GMT-0700

General route info

Frequency:

Daily

Sun Mon Tue Wed Thu Fri Sat

Direct distance

223 miles, 358 km

Actual distance

224 miles, 360 km

0.45%

Flight time

1h 15m

Flights / Week

14 flights

Seats / Week

163 seats/flight

2282 seats/week

Upcoming scheduled flights in the coming 30 days

Date

Time

From

To

Aircraft

Status

ASA370 information

A domestic route in USA departing from Spokane (GEG) and arriving at Seattle (SEA).

The timezones of the departure and arrival airports are identical, UTC -7.

The flight distance is 224 miles, or 360 km.

For direct flights, the flight time is about 1:15.

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Other flights between Philadelphia and Seattle with Alaska Airlines

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Alaska Airlines

ASA370 / AS370

Flight schedule

General route info

Frequency:

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Upcoming scheduled flights in the coming 30 days

ASA370 information

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Other flights between Philadelphia and Seattle with Alaska Airlines

Popular Airports

Popular Airlines

Alaska Airlines

ASA370 / AS370

Flight schedule

General route info

Frequency:

Direct distance

Actual distance

Flight time

Flights / Week

Seats / Week

Upcoming scheduled flights in the coming 30 days

ASA370 information

Philadelphia (PHL) Flight Deals

Philadelphia Hotel Deals

Philadelphia (PHL) Rental Cars

Philadelphia (PHL) Parking

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Other flights between Philadelphia and Seattle with Alaska Airlines

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