Cheap flights from Seattle to Houston from $176 BFI, SEA → IAH
Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → George Bush Intercontinental Airport (IAH)
The cheapest return found recently is $641 with SeaPort Airlines, 7 Dec – 10 Dec, found 2 days ago. The cheapest one-way found recently is $176 with Frontier Airlines, 15 Feb 2027, found 4 days ago.
- Cheapest one-way found recently
- $176, found 4 days ago
- Cheapest return found recently
- $641, 7 Dec to 10 Dec
- Usual return price
- $605 to $722
- Cheapest month to fly
- December 2026, return fares from $378 found in the last 7 days
Return
The cheapest return fare on each of 10 departure dates is usually $605 to $722.
Cheapest return found recently
$641
7 Dec – 10 Dec · SeaPort Airlines
Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH)
Leaves 8:05 p.m. · Return leaves 6:00 a.m. · 45 h 33 min of travel, both ways together
out 2 stops, back 2 stops
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$641 7 Dec – 10 Decfound 2 days agoSee prices for these dates
$378 28 Dec – 1 Jan 2027found 7 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $253 to $852.
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 10 departure dates from 23 Nov to 11 Feb 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?
No. We hold 3-night return fares on 1 other departure date within 3 days of 7 Dec, and it is not cheaper.
Every date we hold
19 fares on 10 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Nov – 26 Nov | $412 | Frontier Airlines | Seattle-Tacoma International Airport (SEA) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 1 Dec – 5 Dec | $717 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 6 Dec – 9 Dec | $723 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 7 Dec – 10 Dec | $641 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 28 Dec – 1 Jan 2027 | $378 | Frontier Airlines | Seattle-Tacoma International Airport (SEA) → George Bush Intercontinental Airport (IAH) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 29 Dec – 3 Jan 2027 | $747 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 30 Dec – 3 Jan 2027 | $681 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 3 days ago | See prices for these dates |
| 31 Dec – 4 Jan 2027 | $816 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
| 22 Jan 2027 – 25 Jan 2027 | $593 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
| 11 Feb 2027 – 15 Feb 2027 | $689 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | out 2 stops, back 2 stops | found 4 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $378.
Airlines on the cheapest dates: SeaPort Airlines, Frontier Airlines.
One-way
The cheapest one-way fare on each of 5 departure dates is usually $302 to $468.
Cheapest one-way found recently
$176
15 Feb 2027 · Frontier Airlines
Seattle-Tacoma International Airport (SEA) → George Bush Intercontinental Airport (IAH)
Leaves 6:33 p.m. · 14 h 55 min trip
1 stop
found 4 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$176 15 Feb 2027found 4 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 28 days, 25 Sept to 11 Nov, the cheapest one-way we saw each day was $127 to $466.
28 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 5 departure dates from 27 Nov to 15 Feb 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 one-way fares leaving within 3 days of 15 Feb 2027 to compare.
Every date we hold
6 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 27 Nov | $513 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | 2 stops | found 7 days ago | Open this trip |
| 29 Dec | $341 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | 2 stops | found 4 days ago | Open this trip |
| 30 Dec | $302 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | 2 stops | found 4 days ago | Open this trip |
| 31 Dec | $468 | SeaPort Airlines | Boeing Field International Airport (BFI) → George Bush Intercontinental Airport (IAH) | 2 stops | found 5 days ago | Open this trip |
| 15 Feb 2027 | $176 | Frontier Airlines | Seattle-Tacoma International Airport (SEA) → George Bush Intercontinental Airport (IAH) | 1 stop | found 4 days ago | Open this trip |
Which month looks cheapest?
February 2027 is the cheapest month — from $176.
Airlines on the cheapest dates: SeaPort Airlines, Frontier Airlines.
Premium cabin fares from Seattle to Houston
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 7 Dec – 10 Dec in another cabin: Premium economy · Business · First
Today's prices for 15 Feb 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Houston?
Return
Fares 30 to 59 days before departure were typically 16% lower than 7 to 13 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 | $412 | $299 | +19% | 12 |
| 14–29 days | $412 | $253 | +19% | 23 |
| 30–59 days | $347 | $253 | Cheapest seen | 30 |
| 60–89 days | $361 | $273 | +4% | 28 |
| 90–179 days | $405 | $364 | +17% | 27 |
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 25 Sept and 11 Nov (28 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 |
|---|---|---|---|---|
| 30–59 days | $141 | $127 | Cheapest seen | 21 |
| 60–89 days | $195 | $195 | +38% | 15 |
| 90–179 days | $197 | $176 | +40% | 11 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Everett → Houston
34 km from Seattle
$634
$7 less than flying from Seattle
5 Dec – 8 Dec · PAE → IAH · out 1 stop, back 1 stop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Everett → Houston
34 km from Seattle
$347
$171 more than flying from Seattle
29 Dec · PAE → IAH · 1 stop
found 4 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 7 Dec – 10 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Seattle to Houston?
The cheapest return found recently is $641 with SeaPort Airlines, 7 Dec to 10 Dec, found 2 days ago. The cheapest return we hold, of any age, is $378 with Frontier Airlines, 28 Dec to 1 Jan 2027, found 7 days ago. The cheapest return fare on each of 10 departure dates is usually $605 to $722.
How much is a one-way flight from Seattle to Houston?
The cheapest one-way found recently is $176 with Frontier Airlines, 15 Feb 2027, found 4 days ago. The cheapest one-way fare on each of 5 departure dates is usually $302 to $468.
What is the cheapest month to fly from Seattle to Houston?
December 2026 is the cheapest month for a return, from $378, 28 Dec to 1 Jan 2027, found 7 days ago. February 2027 is the cheapest month for a one-way, from $176, 15 Feb 2027, found 4 days ago.
How far ahead should I book a flight from Seattle to Houston?
In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 16% lower than 7 to 13 days before departure. In 28 days of prices between 25 Sept and 11 Nov, one-way fares were cheapest 30 to 59 days before departure.
How long is the flight from Seattle to Houston?
The cheapest one-way found recently, with Frontier Airlines on 15 Feb 2027, takes 14 h 55 min with 1 stop.
Which airlines have the cheapest flights from Seattle to Houston?
Between 23 Nov and 11 Feb 2027, SeaPort Airlines has the cheapest return on 8 of the 10 departure dates we hold, and Frontier Airlines on 2. Between 27 Nov and 15 Feb 2027, SeaPort Airlines has the cheapest one-way on 4 of the 5 departure dates we hold, and Frontier Airlines on 1.
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