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prices we've seen · United States fares · USD

Flights from Seattle (SEA) to Las Vegas (LAS)

  • One way from $78
  • Round trip from $139
  • Nonstop on 3 of 3 dates
  • Fastest 2h 35m
  • 3 airlines

The cheapest one-way fare from Seattle (SEA) to Las Vegas (LAS) we have seen is $78 USD, departing Jan 3, 2027 (seen Nov 4, 2026): Frontier F9 4204, nonstop, 2h 40m.

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Prices are the fare alone; the seller shows the bag and fare rules.

Cheapest by month

Checked Nov 11

Pick a month to search the day its cheapest fare leaves.

  1. Nov 2026$141
  2. Dec 2026$100
  3. Jan 2027$78

Cheapest days to fly one wayCheapest round trips

Each day's cheapest fare we've seen, nonstop and with stops. Cheapest first.

We may earn a commission from the seller · How we rank

  1. SunJan 3

    18:25

    2h 40mNonstop

    21:05

    Cheapest$78 USD

    Frontier F9 4204 · seen Nov 4

    Go to seller — $78

  2. TueDec 15

    18:30

    16h 2m1 stop

    10:32+1

    $100 USD

    Southwest Airlines WN 1197 · seen Nov 6

    Go to seller — $100

  3. TueDec 15

    07:15

    2h 35mNonstop

    09:50

    $124 USD

    Alaska Airlines AS 768 · seen Nov 6

    Go to seller — $124

  4. ThuNov 26

    21:53

    2h 46mNonstop

    00:39+1

    $141 USD

    Frontier F9 4204 · seen Nov 9

    Go to seller — $141

The cheapest round trips we've seen on this route, on any dates, cheapest first.

We may earn a commission from the seller · How we rank

  1. 3 nightsJan 25–28

    18:33

    21:13

    Cheapest$139 USD

    Frontier F9 2408 · Nonstop · 5h 39m in all, both ways · seen Nov 7

    Go to seller — $139

  2. 3 nightsJan 11–14

    10:29

    13:07

    $152 USD

    Frontier F9 2408 · Nonstop · 5h 25m in all, both ways · seen Nov 7

    Go to seller — $152

  3. 3 nightsFeb 1–4

    18:33

    21:13

    $152 USD

    Frontier F9 2408 · Nonstop · 5h 39m in all, both ways · seen Nov 7

    Go to seller — $152

  4. 3 nightsMar 1–4

    18:33

    21:13

    $152 USD

    Frontier F9 2408 · Nonstop · 5h 39m in all, both ways · seen Nov 7

    Go to seller — $152

  5. 3 nightsJan 18–21

    09:57

    12:40

    $152 USD

    Frontier F9 4668 · Nonstop · 5h 42m in all, both ways · seen Nov 7

    Go to seller — $152

  6. 2 nightsDec 14–16

    20:56

    23:35

    $172 USD

    Frontier F9 4204 · 1 stop · 9h 50m in all, both ways · seen Nov 4

    Go to seller — $172

  7. 3 nightsDec 21–24

    18:25

    21:05

    $185 USD

    Frontier F9 4204 · 1 stop · 23h 56m in all, both ways · seen Nov 7

    Go to seller — $185

  8. 3 nightsDec 14–17

    20:56

    23:35

    $191 USD

    Frontier F9 4204 · 1 stop · 23h 55m in all, both ways · seen Nov 7

    Go to seller — $191

  9. 2 nightsDec 26–28

    19:47

    22:25

    $222 USD

    Frontier F9 4204 · Nonstop · 5h 37m in all, both ways · seen Nov 9

    Go to seller — $222

  10. 2 nightsJan 2–4

    19:47

    22:25

    $230 USD

    Frontier F9 4204 · Nonstop · 5h 37m in all, both ways · seen Nov 10

    Go to seller — $230
Show 7 more fares

  1. 3 nightsJan 7–10

    17:10

    LAS

    $238 USD

    Southwest Airlines WN 2179 · 2 stops · 21h 19m in all, both ways · seen Nov 8

    Go to seller — $238

  2. 5 nightsDec 24–29

    17:44

    20:20

    $255 USD

    Alaska Airlines AS 552 · Nonstop · 5h 27m in all, both ways · seen Nov 9

    Go to seller — $255

  3. 1 nightNov 15–16

    19:48

    LAS

    $289 USD

    Frontier F9 1178 · 2 stops · 21h 55m in all, both ways · seen Nov 9

    Go to seller — $289

  4. 3 nightsJan 7–10

    17:24

    19:53

    $309 USD

    Alaska Airlines AS 304 · Nonstop · 5h 32m in all, both ways · seen Nov 8

    Go to seller — $309

  5. 1 nightNov 15–16

    21:13

    23:59

    $356 USD

    Frontier F9 4204 · Nonstop · 5h 41m in all, both ways · seen Nov 9

    Go to seller — $356

  6. 6 nightsNov 18–24

    16:58

    19:28

    $361 USD

    Alaska Airlines AS 552 · 1 stop · 17h 4m in all, both ways · seen Nov 8

    Go to seller — $361

  7. 6 nightsNov 18–24

    18:59

    21:30

    $412 USD

    Alaska Airlines AS 1334 · Nonstop · 5h 29m in all, both ways · seen Nov 8

    Go to seller — $412

Compare other routes

Compared with Seattle → Las Vegas: $78 one way (Jan 3).

The way back

Other places from Seattle

Every route from Seattle →

To Las Vegas from other cities

Every route to Las Vegas →

Airlines seen on this route

  • Alaska Airlines
  • Frontier
  • Southwest Airlines

Marketing carriers; the operating airline is shown by the seller.

Seattle to Las Vegas in numbers

  • By month, Jan 2027 is the cheapest we've seen at $78 USD and Nov 2026 the most expensive at $141 USD — a spread of 81%.
  • Nonstop fares were seen on 3 of the 3 departure dates; carriers seen: Alaska Airlines, Frontier, Southwest Airlines.
  • SEA serves Seattle, United States; LAS serves Las Vegas, United States.
  • Seattle and Las Vegas keep the same clock.

Questions

What is the cheapest fare from Seattle (SEA) to Las Vegas (LAS)?

The cheapest one-way fare from Seattle (SEA) to Las Vegas (LAS) we have seen is $78 USD, departing Jan 3, 2027 (seen Nov 4, 2026): Frontier F9 4204, nonstop, 2h 40m.

Is there a nonstop flight from Seattle (SEA) to Las Vegas (LAS)?

Nonstop fares were seen on 3 of the 3 departure dates; carriers seen: Alaska Airlines, Frontier, Southwest Airlines.

Which month is cheapest to fly from Seattle (SEA) to Las Vegas (LAS)?

By month, Jan 2027 is the cheapest we've seen at $78 USD and Nov 2026 the most expensive at $141 USD — a spread of 81%.

How old is this price?

It is the cheapest fare we've seen for that date; the date beside it is the day it was seen, or our last check. We look again at least once a day for the routes people search, and stop showing a route's prices two days after our last look. The seller's page shows the price right now.

How does a2bflight rank results?

By price and duration only; commission never enters the order. Cheapest means cheapest among the fares we've seen for this route. A click that books may earn a2bflight a commission from the seller; the price you see is the seller's own. See how we rank and what we keep.