Cheap flights from Seattle to Miami
The cheapest round trip from Seattle to Miami that travelers found recently is $435 with a carry-on: a $435 fare on Alaska Airlines, which usually includes a carry-on. It leaves Sun, Nov 1 and comes back Tue, Nov 3.
Live prices for Sun, Nov 1 to Tue, Nov 3
Cheapest trips travelers found recently
| Leave | Return | Airline | Airports | Stops | Fare | Carry-on (est.) | Total | Live prices |
|---|---|---|---|---|---|---|---|---|
| Sun, Nov 1 | Tue, Nov 3 | Alaska Airlines | SEA → MIA | 2 stops | $435 | Included | $435 | Live price |
| Thu, Mar 4 | Thu, Mar 11 | Alaska Airlines | SEA → MIA | Nonstop | $435 | Included | $435 | Live price |
| Sat, Feb 6 | Sat, Feb 13 | American Airlines | SEA → MIA | Nonstop | $439 | Included | $439 | Live price |
| Fri, Nov 13 | Tue, Nov 17 | Frontier | SEA → MIA | 2 stops | $352 | +$110 | $462 | Live price |
| Sat, Mar 6 | Sat, Mar 13 | American Airlines | SEA → MIA | Nonstop | $470 | Included | $470 | Live price |
| Fri, Mar 5 | Fri, Mar 12 | Alaska Airlines | SEA → MIA | Nonstop | $483 | Included | $483 | Live price |
| Tue, Dec 29 | Mon, Jan 11 | Sun Country | SEA → MIA | 1 stop | $416 | +$110 | $526 | Live price |
Round-trip prices per person, from real fares travelers found in the last few days. Carry-on fees are our estimate for each airline, both ways. Prices change fast: check the live price before you book.
Cheapest month to fly
| Month | Cheapest trip | From | Live prices |
|---|---|---|---|
| November 2026 | Sun, Nov 1 to Tue, Nov 3, 2 nights | $435 | Live price |
| December 2026 | Tue, Dec 29 to Mon, Jan 11, 13 nights | $526 | Live price |
| February 2027 | Sat, Feb 6 to Sat, Feb 13, 7 nights | $439 | Live price |
| March 2027 | Thu, Mar 4 to Thu, Mar 11, 7 nights | $435 | Live price |
Bag fees on this route
What the airlines flying Seattle to Miami usually charge for one bag each way. Budget airlines often sell the cheapest fares and charge the most for bags, so compare the total, not the fare.
| Airline | Carry-on, each way | Checked bag, each way |
|---|---|---|
| Alaska Airlines | Included | $40 |
| American Airlines | Included | $40 |
| Frontier | $55 | $50 |
| Sun Country | $55 | $50 |
Our estimates: fees depend on the fare type and when you pay. Check the airline's own price when you book.
How these prices work
These are real round-trip fares that travelers found on Aviasales recently, not a live search, so they can change or sell out. Dipt adds an estimate of each airline's carry-on fee, so a cheap fare with expensive bags doesn't look cheaper than it is. "Live price" opens Dipt's live flight search for those dates, where you book with the airline or travel site you pick. Dipt may earn a commission when you book, at no extra cost to you (how Dipt makes money).
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