Seattle to Miami BFI, SEA → MIA
Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA)
The cheapest return found recently is $417 with Frontier Airlines, 8 Nov – 11 Nov, found 3 days ago. The cheapest one-way found recently is $157 with Hawaiian Airlines, 27 Oct, found today.
Return
The cheapest return fare on each of 8 departure dates is usually $431 to $473.
Cheapest return found recently
$417
8 Nov – 11 Nov · Frontier Airlines
Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA)
Leaves 10:50 a.m. · Return leaves 5:50 a.m. · 40 h 38 min of travel, both ways together
out 3 stops, back 1 stop
found 3 days ago
Cheapest nonstop return
$435
4 Mar 2027 – 11 Mar 2027 · Alaska Airlines
Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA)
Leaves 8:05 a.m. · Return leaves 6:14 p.m. · 12 h 43 min of travel, both ways together
out nonstop, back nonstop
found 5 days ago
Found recently, and the cheapest we hold
$417 8 Nov – 11 Novfound 3 days agoSee prices for these dates
$352 13 Nov – 17 Novfound 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $232 to $352.
At $417, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 8 departure dates from 1 Nov to 6 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 8 Nov to compare.
Every date we hold
10 fares on 8 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Nov – 3 Nov | $435 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out 1 stop, back 2 stops | found 6 days ago | See prices for these dates |
| 8 Nov – 11 Nov | $417 | Frontier Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out 3 stops, back 1 stop | found 3 days ago | See prices for these dates |
| 13 Nov – 17 Nov | $352 | Frontier Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out 1 stop, back 2 stops | found 6 days ago | See prices for these dates |
| 1 Dec – 8 Dec | $776 | SeaPort Airlines | Boeing Field International Airport (BFI) → Miami International Airport (MIA) | out 3 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 6 Feb 2027 – 13 Feb 2027 | $439 | American Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 4 Mar 2027 – 11 Mar 2027 | $435 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 5 Mar 2027 – 12 Mar 2027 | $483 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 6 Mar 2027 – 13 Mar 2027 | $470 | American Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $352.
Airlines on the cheapest dates: Alaska Airlines, Frontier Airlines, American Airlines, SeaPort Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $161 to $174.
Cheapest one-way found recently
$157
27 Oct · Hawaiian Airlines
Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA)
Leaves 8:08 a.m. · 6 h 7 min trip
stops unknown
found today
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$157 27 Octfound todayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $125 to $364.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 26 Oct to 2 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 27 Oct, and it is not cheaper.
Every date we hold
5 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 26 Oct | $183 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | stops unknown | found 3 days ago | Open this trip |
| 27 Oct | $157 | Hawaiian Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | stops unknown | found today | Open this trip |
| 2 Nov | $164 | Alaska Airlines | Seattle-Tacoma International Airport (SEA) → Miami International Airport (MIA) | 1 stop | found 3 days ago | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $157.
Airlines on the cheapest dates: Alaska Airlines, Hawaiian Airlines.
Premium cabin fares from Seattle to Miami
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 8 Nov – 11 Nov in another cabin: Premium economy · Business · First
Today's prices for 27 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Miami?
Return
The cheapest fares were 7 to 13 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $288 | $288 | Cheapest seen | 7 |
| 14–29 days | $325 | $232 | +13% | 22 |
| 30–59 days | $368 | $304 | +28% | 18 |
| 60–89 days | $416 | $416 | +44% | 14 |
| 90–179 days | $416 | $414 | +44% | 19 |
One-way
The cheapest fares were 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $151 | $150 | Cheapest seen | 9 |
| 14–29 days | $160 | $125 | +6% | 21 |
| 30–59 days | $171 | $144 | +13% | 8 |
| 90–179 days | $209 | $209 | +38% | 8 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Everett → Miami
34 km from Seattle
$666
$249 more than flying from Seattle
6 Mar 2027 – 13 Mar 2027 · PAE → MIA · out 1 stop, back nonstop
found 5 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 8 Nov – 11 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work