Cheap flights from Seattle to Las Vegas
The cheapest round trip from Seattle to Las Vegas that travelers found recently is $135 with a carry-on: a $135 fare on Alaska Airlines, which usually includes a carry-on. It leaves Wed, Nov 4 and comes back Sat, Nov 7.
Live prices for Wed, Nov 4 to Sat, Nov 7
Cheapest trips travelers found recently
| Leave | Return | Airline | Airports | Stops | Fare | Carry-on (est.) | Total | Live prices |
|---|---|---|---|---|---|---|---|---|
| Wed, Nov 4 | Sat, Nov 7 | Alaska Airlines | SEA → LAS | Nonstop | $135 | Included | $135 | Live price |
| Wed, Oct 28 | Mon, Nov 2 | Southwest | SEA → LAS | 1 stop | $147 | Included | $147 | Live price |
| Wed, Nov 4 | Sun, Nov 8 | Alaska Airlines | SEA → LAS | 1 stop | $155 | Included | $155 | Live price |
| Wed, Dec 30 | Sun, Jan 3 | Southwest | SEA → LAS | 1 stop | $171 | Included | $171 | Live price |
| Tue, Dec 15 | Fri, Dec 18 | Southwest | SEA → LAS | 1 stop | $251 | Included | $251 | Live price |
| Fri, Dec 18 | Sun, Dec 20 | Southwest | SEA → LAS | Nonstop | $264 | Included | $264 | Live price |
| Thu, Dec 24 | Thu, Dec 31 | Southwest | SEA → LAS | 1 stop | $287 | Included | $287 | Live price |
| Sat, Dec 12 | Mon, Dec 14 | Frontier | SEA → LAS | 1 stop | $210 | +$110 | $320 | Live price |
| Sat, Dec 19 | Mon, Dec 21 | Frontier | SEA → LAS | Nonstop | $220 | +$110 | $330 | Live price |
| Mon, Oct 19 | Sat, Oct 24 | Frontier | SEA → LAS | Nonstop | $282 | +$110 | $392 | 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 |
|---|---|---|---|
| October 2026 | Wed, Oct 28 to Mon, Nov 2, 5 nights | $147 | Live price |
| November 2026 | Wed, Nov 4 to Sat, Nov 7, 3 nights | $135 | Live price |
| December 2026 | Wed, Dec 30 to Sun, Jan 3, 4 nights | $171 | Live price |
Bag fees on this route
What the airlines flying Seattle to Las Vegas 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 |
| Frontier | $55 | $50 |
| Southwest | Included | $35 |
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).
Not sure where to go? Tell Dipt your budget and vibe and it finds the trip.
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