Cheap flights from Boston to Las Vegas from $213 BOS → LAS
Logan International Airport (BOS) → McCarran International Airport (LAS)
The cheapest return found recently is $492 with Alaska Airlines, 4 Oct 2027 – 8 Oct 2027, found 2 days ago. The cheapest one-way found recently is $213 with American Airlines, 8 Apr 2027, found 2 days ago.
- Cheapest one-way found recently
- $213, found 2 days ago
- Cheapest return found recently
- $492, 4 Oct 2027 to 8 Oct 2027
- Usual return price
- $485 to $495
- Cheapest month to fly
- November 2026, return fares from $477 found in the last 7 days
Return
The cheapest return fare on each of 3 departure dates is usually $485 to $495.
Cheapest return found recently
$492
4 Oct 2027 – 8 Oct 2027 · Alaska Airlines
Logan International Airport (BOS) → McCarran International Airport (LAS)
Leaves 8:05 a.m. · Return leaves 5:22 p.m. · 20 h 39 min of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$492 4 Oct 2027 – 8 Oct 2027found 2 days agoSee prices for these dates
$477 15 Nov – 19 Novfound 4 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 $216 to $464.
At $492, the cheapest return found recently is above that range.
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 3 departure dates from 13 Nov to 4 Oct 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 4-night return fares leaving within 3 days of 4 Oct 2027 to compare.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 20 Nov | $497 | Frontier Airlines | Logan International Airport (BOS) → McCarran International Airport (LAS) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 15 Nov – 19 Nov | $477 | Frontier Airlines | Logan International Airport (BOS) → McCarran International Airport (LAS) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 4 Oct 2027 – 8 Oct 2027 | $492 | Alaska Airlines | Logan International Airport (BOS) → McCarran International Airport (LAS) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $477.
Airlines on the cheapest dates: Frontier Airlines, Alaska Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$213
8 Apr 2027 · American Airlines
Logan International Airport (BOS) → McCarran International Airport (LAS)
Leaves 5:35 p.m. · 8 h 33 min trip
1 stop
found 2 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$213 8 Apr 2027found 2 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 42 days, 1 Oct to 11 Nov, the cheapest one-way we saw each day was $121 to $213.
At $213, the cheapest one-way found recently is at the high end of that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 2 departure dates and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 8 Apr 2027 to compare.
Every date we hold
2 fares on 2 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 8 Apr 2027 | $213 | American Airlines | Logan International Airport (BOS) → McCarran International Airport (LAS) | 1 stop | found 2 days ago | Open this trip |
| 21 Apr 2027 | $225 | American Airlines | Logan International Airport (BOS) → McCarran International Airport (LAS) | 1 stop | found 3 days ago | Open this trip |
Airlines on the cheapest dates: American Airlines.
Premium cabin fares from Boston 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.
Today's prices for 4 Oct 2027 – 8 Oct 2027 in another cabin: Premium economy · Business · First
Today's prices for 8 Apr 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Boston to Las Vegas?
Return
Fares 60 to 89 days before departure were typically 28% 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $441 | $293 | +39% | 19 |
| 7–13 days | $450 | $233 | +41% | 12 |
| 14–29 days | $354 | $242 | +11% | 16 |
| 30–59 days | $319 | $242 | +0% | 36 |
| 60–89 days | $318 | $216 | Cheapest seen | 39 |
| 90–179 days | $383 | $309 | +20% | 31 |
| 180+ days | $442 | $388 | +39% | 20 |
One-way
The cheapest fares were 30 to 59 days before departure.
From the cheapest one-way each day between 1 Oct and 11 Nov (42 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 |
|---|---|---|---|---|
| 14–29 days | $133 | $127 | +2% | 16 |
| 30–59 days | $131 | $121 | Cheapest seen | 22 |
| 60–89 days | $142 | $124 | +8% | 21 |
| 90–179 days | $206 | $206 | +57% | 22 |
| 180+ days | $210 | $204 | +60% | 15 |
Live price for these dates
The cheapest return found recently is for 4 Oct 2027 – 8 Oct 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 Boston to Las Vegas?
The cheapest return found recently is $492 with Alaska Airlines, 4 Oct 2027 to 8 Oct 2027, found 2 days ago. The cheapest return we hold, of any age, is $477 with Frontier Airlines, 15 Nov to 19 Nov, found 4 days ago. The cheapest return fare on each of 3 departure dates is usually $485 to $495.
How much is a one-way flight from Boston to Las Vegas?
The cheapest one-way found recently is $213 with American Airlines, 8 Apr 2027, found 2 days ago.
What is the cheapest month to fly from Boston to Las Vegas?
November 2026 is the cheapest month for a return, from $477, 15 Nov to 19 Nov, found 4 days ago.
How far ahead should I book a flight from Boston to Las Vegas?
In 49 days of prices between 24 Sept and 11 Nov, return fares 60 to 89 days before departure were typically 28% lower than 0 to 6 days before departure. In 42 days of prices between 1 Oct and 11 Nov, one-way fares were cheapest 30 to 59 days before departure.
How long is the flight from Boston to Las Vegas?
The cheapest one-way found recently, with American Airlines on 8 Apr 2027, takes 8 h 33 min with 1 stop.
Which airlines have the cheapest flights from Boston to Las Vegas?
Between 13 Nov and 4 Oct 2027, Frontier Airlines has the cheapest return on 2 of the 3 departure dates we hold, and Alaska 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