Miami to Seattle flights – the most comfortable way to fly
2 airlines fly nonstop between Miami and Seattle, about 14 flights a week. The flight takes 6h 00m and covers 4,380 km. The most comfortable economy seat is on Delta's Airbus A220-300. There's no lie-flat business class on this route.
Most comfortable economy
- 31″ legroom
- 18.6″ wide seat
- Cabin altitude 7,500 ft
- Wi-Fi
- Power
Most comfortable business
- 38″ legroom
- 21.0″ wide seat
- No middle seats
- Cabin altitude 7,500 ft
- Wi-Fi
- Power
Nonstop flights from Miami to Seattle
| Flight | Departs | Duration | Aircraft | Economy | Business | Days |
|---|---|---|---|---|---|---|
| Delta DL7673 MIA → SEA |
09:50 | 6h 00m | A220-300 Narrow-body |
6.5Comfortable | 7.4Very comfortable | MTWTFSS |
| American Airlines AA5351 MIA → SEA |
10:40 | 6h 00m | A321neo Narrow-body |
5.3Okay | 7.4Very comfortable | MTWTFSS |
Frequently asked questions
How long is the flight from Miami to Seattle?
A nonstop flight from Miami to Seattle takes about 6 h 0 min and covers 4,380 km.
Which airlines fly nonstop from Miami to Seattle?
American Airlines and Delta fly nonstop, with about 14 flights a week.
What is the most comfortable economy seat from Miami to Seattle?
Delta on the Airbus A220-300: 2-3 layout, 31″ legroom and 18.6″ wide seats – comfort score 6.5/10 (comfortable).
Is there lie-flat business class from Miami to Seattle?
No – business class on this route is recliner (domestic first) (2-2). The best is Delta on the Airbus A220-300, comfort score 7.4/10.
Can I fly with my dog from Miami to Seattle?
Yes – American Airlines and Delta take small dogs in the cabin (usually up to 9 kg including the bag).
Is business class worth it from Miami to Seattle?
Business is a wide recliner with more legroom for about 274% more than economy on Delta – SkyBuddy's upgrade score: 1.9/10 (not worth it).
Which aircraft fly from Miami to Seattle?
Airbus A321neo and Airbus A220-300.
Schedules, seat details and fares are indicative estimates from SkyBuddy's airline model. Check the live price before you book.