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Cheap flights from Seattle to Las Vegas from $153 BFI, SEA → LAS

Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)

The cheapest return found recently is $153 with Frontier Airlines, 25 Jan 2027 – 28 Jan 2027, found yesterday. The cheapest one-way found recently is $219 with Frontier Airlines, 16 Nov, found 2 days ago.

Cheapest one-way found recently
$219, found 2 days ago
Cheapest return found recently
$153, 25 Jan 2027 to 28 Jan 2027
Usual return price
$152 to $335
Cheapest month to fly
January 2027, return fares from $139 found in the last 7 days
Airlines with nonstop flights
Alaska Airlines, Frontier Airlines, Southwest Airlines
Shortest nonstop flight found
2 h 46 min

Return

The cheapest return fare on each of 14 departure dates is usually $152 to $335.

Cheapest return found recently

$153

25 Jan 2027 – 28 Jan 2027 · Frontier Airlines

Seattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)

Leaves 11:58 a.m. · Return leaves 8:00 a.m. · 5 h 37 min of travel, both ways together

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

Cheapest nonstop return

$153

25 Jan 2027 – 28 Jan 2027 · Frontier Airlines

Seattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)

Leaves 11:58 a.m. · Return leaves 8:00 a.m. · 5 h 37 min of travel, both ways together

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

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Found recently, and the cheapest we hold

Cheapest found recently $153 25 Jan 2027 – 28 Jan 2027found yesterdaySee prices for these dates

Cheapest we hold, of any age $139 25 Jan 2027 – 28 Jan 2027found 6 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 $80 to $290.

$153, the cheapest return found recently, sits here in that range of $80 to $290.

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 14 departure dates from 13 Nov to 12 Apr 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 25 Jan 2027 to compare.

Every date we hold

69 fares on 14 departure dates

13 Nov – 15 Nov: $396, found 5 days ago15 Nov – 16 Nov: $1,011, found 4 days ago18 Nov – 24 Nov: $361, found 5 days ago14 Dec – 17 Dec: $191, found 6 days ago17 Dec – 20 Dec: $226, found 2 days ago21 Dec – 24 Dec: $185, found 6 days ago24 Dec – 29 Dec: $255, found 4 days ago7 Jan 2027 – 10 Jan 2027: $238, found 5 days ago11 Jan 2027 – 14 Jan 2027: $152, found 6 days ago18 Jan 2027 – 21 Jan 2027: $152, found 6 days ago25 Jan 2027 – 28 Jan 2027: $139, found 6 days ago1 Feb 2027 – 4 Feb 2027: $152, found 6 days ago1 Mar 2027 – 4 Mar 2027: $152, found 6 days ago12 Apr 2027 – 15 Apr 2027: $421, found 7 days agoNovDecJanFebMarApr
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
13 Nov – 15 Nov$396Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
15 Nov – 16 Nov$1,011SeaPort AirlinesBoeing Field International Airport (BFI) → McCarran International Airport (LAS)out 2 stops, back 2 stopsfound 4 days agoSee prices for these dates
18 Nov – 24 Nov$361Alaska AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back 1 stopfound 5 days agoSee prices for these dates
14 Dec – 17 Dec$191Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
17 Dec – 20 Dec$226Southwest AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out 1 stop, back nonstopfound 2 days agoSee prices for these dates
21 Dec – 24 Dec$185Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back 1 stopfound 6 days agoSee prices for these dates
24 Dec – 29 Dec$255Alaska AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 4 days agoSee prices for these dates
7 Jan 2027 – 10 Jan 2027$238Southwest AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
11 Jan 2027 – 14 Jan 2027$152Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
18 Jan 2027 – 21 Jan 2027$152Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
25 Jan 2027 – 28 Jan 2027$139Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
1 Feb 2027 – 4 Feb 2027$152Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
1 Mar 2027 – 4 Mar 2027$152Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 6 days agoSee prices for these dates
12 Apr 2027 – 15 Apr 2027$421Southwest AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)out nonstop, back nonstopfound 7 days agoSee prices for these dates

Which month looks cheapest?

January 2027 is the cheapest month — from $139.

November 2026From $3613 departure dates18 Nov – 24 Nov · found 5 days agoSee prices for these dates
December 2026From $1854 departure dates21 Dec – 24 Dec · found 6 days agoSee prices for these dates
January 2027From $139Cheapest seen4 departure dates25 Jan 2027 – 28 Jan 2027 · found 6 days agoSee prices for these dates
February 2027From $1521 departure date1 Feb 2027 – 4 Feb 2027 · found 6 days agoSee prices for these dates
March 2027From $1521 departure date1 Mar 2027 – 4 Mar 2027 · found 6 days agoSee prices for these dates
April 2027From $4211 departure date12 Apr 2027 – 15 Apr 2027 · found 7 days agoSee prices for these dates

One-way

The cheapest one-way fare on each of 3 departure dates is usually $180 to $356.

Cheapest one-way found recently

$219

16 Nov · Frontier Airlines

Seattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)

Leaves 9:13 p.m. · 2 h 46 min trip

stops unknown

found 2 days ago

Open this tripCheck today's price

Cheapest nonstop one-way

$141

26 Nov · Frontier Airlines

Seattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)

Leaves 9:53 p.m. · 2 h 46 min trip

nonstop

found 4 days ago

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Found recently, and the cheapest we hold

Cheapest found recently $219 16 Novfound 2 days agoOpen this trip

Cheapest we hold, of any age $141 26 Novfound 4 days agoOpen this trip

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $64 to $228.

$219, the cheapest one-way found recently, sits here in that range of $64 to $228.

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 16 Nov to 18 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 one-way fares leaving within 3 days of 16 Nov to compare.

Every date we hold

4 fares on 3 departure dates

16 Nov: $219, found 2 days ago26 Nov: $141, found 4 days ago18 Dec: $493, found 2 days agoNovDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
16 Nov$219Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)stops unknownfound 2 days agoOpen this trip
26 Nov$141Frontier AirlinesSeattle-Tacoma International Airport (SEA) → McCarran International Airport (LAS)nonstopfound 4 days agoOpen this trip
18 Dec$493SeaPort AirlinesBoeing Field International Airport (BFI) → McCarran International Airport (LAS)2 stopsfound 2 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $141.

November 2026From $141Cheapest seen2 departure dates26 Nov · found 4 days agoOpen this trip
December 2026From $4931 departure date18 Dec · found 2 days agoOpen this trip

Premium cabin fares from Seattle to Las Vegas

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.

How far ahead were prices cheapest for Seattle to Las Vegas?

Return

Fares 90 to 179 days before departure were typically 39% lower than 0 to 6 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
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$293$227+65%36
7–13 days$273$147+53%34
14–29 days$211$135+19%35
30–59 days$202$172+13%34
60–89 days$220$80+24%39
90–179 days$178$145Cheapest seen18

One-way

Fares 60 to 89 days before departure were typically 39% lower than 0 to 6 days before departure.

From the cheapest one-way 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
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$143$132+63%27
7–13 days$220$91+149%24
14–29 days$117$64+33%38
30–59 days$97$78+10%18
60–89 days$88$68Cheapest seen23
90–179 days$107$107+22%12
180+ days$228$228+159%16

Could a nearby airport be cheaper?

A different airport at either end can change the fare — sometimes a lot.

Return

Everett → Las Vegas

34 km from Seattle

$229

$76 more than flying from Seattle

17 Dec – 20 Dec · PAE → LAS · out nonstop, back nonstop

found 2 days ago

See this route

Bellingham → Las Vegas

128 km from Seattle

$245

$92 more than flying from Seattle

4 Dec – 6 Dec · BLI → LAS · out nonstop, back nonstop

found 3 days ago

Check today's price

Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.

One-way

Everett → Las Vegas

34 km from Seattle

$257

$38 more than flying from Seattle

18 Dec · PAE → LAS · nonstop

found 2 days ago

See this route

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 25 Jan 2027 – 28 Jan 2027. 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 Las Vegas?

The cheapest return found recently is $153 with Frontier Airlines, 25 Jan 2027 to 28 Jan 2027, found yesterday. The cheapest return we hold, of any age, is $139 with Frontier Airlines, 25 Jan 2027 to 28 Jan 2027, found 6 days ago. The cheapest return fare on each of 14 departure dates is usually $152 to $335.

How much is a one-way flight from Seattle to Las Vegas?

The cheapest one-way found recently is $219 with Frontier Airlines, 16 Nov, found 2 days ago. The cheapest one-way we hold, of any age, is $141 with Frontier Airlines, 26 Nov, found 4 days ago. The cheapest one-way fare on each of 3 departure dates is usually $180 to $356.

What is the cheapest month to fly from Seattle to Las Vegas?

January 2027 is the cheapest month for a return, from $139, 25 Jan 2027 to 28 Jan 2027, found 6 days ago. November 2026 is the cheapest month for a one-way, from $141, 26 Nov, found 4 days ago.

How far ahead should I book a flight from Seattle to Las Vegas?

In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 39% lower than 0 to 6 days before departure. One-way fares 60 to 89 days before departure were typically 39% lower than 0 to 6 days before departure.

Is there a direct flight from Seattle to Las Vegas?

Yes, the cheapest nonstop return found recently is $153 with Frontier Airlines, 25 Jan 2027 to 28 Jan 2027, found yesterday. The cheapest nonstop one-way found recently is $141 with Frontier Airlines, 26 Nov, found 4 days ago.

How long is the flight from Seattle to Las Vegas?

The cheapest nonstop one-way found recently, with Frontier Airlines on 26 Nov, takes 2 h 46 min from Seattle-Tacoma International Airport (SEA) to McCarran International Airport (LAS).

Which airlines have the cheapest flights from Seattle to Las Vegas?

Between 13 Nov and 12 Apr 2027, Frontier Airlines has the cheapest return on 8 of the 14 departure dates we hold, Southwest Airlines on 3 and Alaska Airlines on 2. Between 16 Nov and 18 Dec, Frontier Airlines has the cheapest one-way on 2 of the 3 departure dates we hold, and SeaPort 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