Dallas to Seattle DAL, DFW → SEA
Dallas Love Field (DAL), Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA)
The cheapest return found recently is $367 with Alaska Airlines, 30 Dec – 5 Jan 2027, found today.
Return
The cheapest return fare on each of 5 departure dates is usually $346 to $415.
Cheapest return found recently
$367
30 Dec – 5 Jan 2027 · Alaska Airlines
Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA)
Leaves 6:00 a.m. · Return leaves 11:53 a.m. · 20 h 14 min of travel, both ways together
out nonstop, back 1 stop
found today
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$367 30 Dec – 5 Jan 2027found todaySee prices for these dates
$317 29 Dec – 30 Decfound 3 days agoSee prices for these dates
What have prices looked like?
Over 23 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $135 to $500.
23 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 5 departure dates from 26 Dec to 30 Dec, 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 6-night return fares leaving within 3 days of 30 Dec to compare.
Every date we hold
21 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 26 Dec – 29 Dec | $346 | Frontier Airlines | Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 27 Dec – 29 Dec | $415 | Frontier Airlines | Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 28 Dec – 29 Dec | $428 | Alaska Airlines | Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 29 Dec – 30 Dec | $317 | Alaska Airlines | Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 30 Dec – 5 Jan 2027 | $367 | Alaska Airlines | Dallas/Fort Worth International Airport (DFW) → Seattle-Tacoma International Airport (SEA) | out nonstop, back 1 stop | found today | See prices for these dates |
Airlines on the cheapest dates: Alaska Airlines, Frontier Airlines.
Premium cabin fares from Dallas to Seattle
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 30 Dec – 5 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Dallas to Seattle?
Return
Fares 30 to 59 days before departure were typically 30% lower than 7 to 13 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (23 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 | $339 | $164 | +42% | 14 |
| 30–59 days | $239 | $239 | Cheapest seen | 8 |
| 60–89 days | $332 | $317 | +39% | 7 |
Live price for these dates
The cheapest return found recently is for 30 Dec – 5 Jan 2027. 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