
Book Cheap United flight from Miami (MIA) to Seattle (SEA) from CA $256
Find The Best Day to Book a Cheap United Flights From Miami to Seattle
Cheapest United Flights from Miami (MIA) to Seattle (SEA)
The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $512 round trip and CA $256 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great United flight from MIA to SEA
To find a great deal on United flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying United Miami to Seattle gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with United between Miami and Seattle
United has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Miami to Seattle with United are January.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your United flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Travelers ❤️ these 🏨 after their flight to Seattle

Coast Gateway Hotel
All interaction with staff was fantastic 😊. The hotel was clean as was my room. The breakfast was fantastic! Eggs, sausassortedbreads
Reviewed on Dec 5, 2025

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Everything was nice. Check-in was fast and easy. Had difficulty with the tv remote. It took a few phone call to the front desk. Someone finally came down to fix it. It was a strange fix, took a code. Plenty of pillows and towels. Had a grab and go breakfast due to an early flight. Could have been ...
Reviewed on Nov 29, 2025

SureStay Hotel by Best Western SeaTac Airport North
Good rooms
Reviewed on Nov 27, 2025
Want more than a(n) United Flight from Miami to Seattle?
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