£400 Cheap Flights to Mountain States

View £400 flight on Tue, 10 Nov 2026Opens in a new window

Popular airlines

  • Alaska Airlines

  • Frontier Airlines

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Mountain States

Prices were available within the past 7 days and start at £400 for one-way flights and £542 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

KLM
Tue, 9 Mar - Wed, 17 Mar
LHR
London
LAS
Las Vegas
£554 Return, found 8 hours ago
£554
Return
found 8 hours ago
Select KLM flight, departing Tue, 9 Mar from London to Las Vegas, returning Wed, 17 Mar, priced at £554 found 8 hours ago
Delta
Thu, 4 Mar - Sun, 7 Mar
LHR
London
LAS
Las Vegas
£556 Return, found 11 hours ago
£556
Return
found 11 hours ago
Select Delta flight, departing Thu, 4 Mar from London to Las Vegas, returning Sun, 7 Mar, priced at £556 found 11 hours ago
Virgin Atlantic
Thu, 4 Mar - Sun, 7 Mar
LHR
London
LAS
Las Vegas
£556 Return, found 11 hours ago
£556
Return
found 11 hours ago
Select Virgin Atlantic flight, departing Thu, 4 Mar from London to Las Vegas, returning Sun, 7 Mar, priced at £556 found 11 hours ago
Iberia
Sun, 11 Oct - Mon, 19 Oct
LHR
London
LAS
Las Vegas
£561 Return, found 13 hours ago
£561
Return
found 13 hours ago
Select Iberia flight, departing Sun, 11 Oct from London to Las Vegas, returning Mon, 19 Oct, priced at £561 found 13 hours ago
Air France
Mon, 12 Oct - Tue, 20 Oct
LHR
London
LAS
Las Vegas
£563 Return, found 16 hours ago
£563
Return
found 16 hours ago
Select Air France flight, departing Mon, 12 Oct from London to Las Vegas, returning Tue, 20 Oct, priced at £563 found 16 hours ago

Frequently asked questions

How do I find cheap flights to Mountain States that have flexible change policies?
When it comes to travelling these days, flexibility is crucial. That's why we've added a "No change fee" filter to help you track down flexible, low-priced flights to Mountain States. It's to the left of your screen directly underneath the "Flexible change policies" heading.
Which airlines fly to Mountain States?
With a range of airlines flying to destinations in or near Mountain States, exploring more of this region is a snap. Reserve your seat with one of these carriers:

  • United Airlines - 15,794 flights to or near Mountain States each month, including 13,033 flights to Denver Intl. Airport (DEN) and 1,157 flights to McCarran Intl. Airport (LAS) per month.
  • Southwest Airlines - 14,139 flights to or near Mountain States each month, including 6,339 flights to Denver Intl. Airport (DEN) and 6,162 flights to McCarran Intl. Airport (LAS) per month.
  • Delta Air Lines - 10,161 flights to or near Mountain States each month, including 6,400 flights to Salt Lake City Intl. Airport (SLC) and 1,291 flights to McCarran Intl. Airport (LAS) per month.

How can I find cheap tickets to Mountain States?
You'll always pick up an unbeatable deal with Expedia, but our "flexible dates" search function makes it that much easier. Enter your preferred flight date, then tick the flexible dates box above to see a list of prices for nearby days. £542 was the best price for a flight to Mountain States in the last seven days.
How much is a flight to Mountain States?
If you were travelling one way from London (LHR), you could've nabbed a bargain fare for £400 in the last seven days. Return flights to Mountain States ranged from £542 to £563 during this same period.
What are the most popular airports to fly into in Mountain States?
Fly into one of these leading Mountain States airports and you'll be ideally placed to enjoy all that this wonderful region has to offer:

  • Denver Intl. Airport (DEN) - 24,249 flights per month.
  • McCarran Intl. Airport (LAS) - 15,151 flights per month.
  • Salt Lake City Intl. Airport (SLC) - 8,676 flights per month.

When is the cheapest time to fly to Mountain States?
Leave for Mountain States early on in the week and you'll usually be rewarded with lower fares. Tuesday is known for being the cheapest day to get on a plane, with Monday a close second. If you'd like to avoid the priciest flights, give Saturdays a wide berth.
How much is a plane ticket to Mountain States?
Plane fares ranged from just £542 to £563 in the last seven days. When you're ready to book, we'll help you grab an amazing deal to Mountain States.
What months are the cheapest to book a flight to Mountain States?
The ideal month to reserve a great deal to Mountain States is February, whereas prices rise considerably in December. Avoid this month if you want to save your dollars.

Travel information

Destination airport
Harry Reid Intl.
Destination airport IATA code
LAS
Destination city name
Las Vegas
Return price
£542

Trending flights to Mountain States

Prices were available within the past 7 days and start at £400 for one-way flights and £542 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, 7 Oct - Wed, 14 Oct
LGW
London
LAS
Las Vegas
£542 Return, found 6 hours ago
£542
Return
found 6 hours ago
Select British Airways flight, departing Wed, 7 Oct from London to Las Vegas, returning Wed, 14 Oct, priced at £542 found 6 hours ago
*Available to Expedia members.