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Explore Montana’s magnificent wilderness landscapes cost-effectively by securing cheap return airfares to Great Falls International Airport (GTF), leaving London Heathrow or Gatwick priced from £439. We organize reliable flight paths alongside major transatlantic partners, including United Airlines and Delta. Every Seven Zones Travel itinerary incorporates total ATOL financial protection, adaptable baggage terms, 100% transparent pricing without surprise surcharges, and instant 24/7 client care assistance.
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Live fares to Great Falls load the moment you search. In the meantime, here is what to know about flying to Great Falls from London.
Average daytime temperature and monthly rainfall across the year, so you can pick the best time to fly. Source: long-term climate normals.
Average temperature (°C)
Average rainfall (mm)
Fares shown are indicative estimates. Search for live prices and availability to Great Falls.
Search live faresThursday
Overcast
11°C
15/10/2026
Friday
Overcast
19°C
16/10/2026
Saturday
Overcast
21°C
17/10/2026
Sunday
Overcast
16°C
18/10/2026
Monday
Overcast
18°C
19/10/2026
Tuesday
Overcast
21°C
20/10/2026
Wednesday
Overcast
14°C
21/10/2026
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Great Falls sits on the banks of the Missouri River in central Montana, a friendly, unpretentious city that makes an excellent base for exploring the northern Rockies, the high plains and the Lewis and Clark trail. Most UK travellers pair it with a wider Montana or Yellowstone road trip. Expect big skies, western history and outdoor space in every direction.
The most comfortable window for flights to Great Falls is late June to early September, when daytime temperatures sit in the low to mid-20s Celsius and the River's Edge Trail and nearby state parks are at their best. May and September are quieter and often cheaper, with cooler but pleasant days. Winters are cold and snowy, with temperatures regularly below freezing and the famous chinook winds sweeping down off the mountains, so pack accordingly between November and March. The When to book chart above shows how fares move across the year.
There are no direct flights from the UK to Great Falls; every routing connects through a US hub. Common options are British Airways, Virgin Atlantic, United, Delta or American from London, Manchester or Edinburgh to gateways such as Denver, Seattle, Minneapolis, Salt Lake City or Chicago, then a short onward hop into Great Falls International (GTF) with United, Delta or Alaska Airlines. Allegiant also links GTF with Las Vegas and Phoenix-Mesa. Transatlantic sectors run around 9 to 11 hours; with one connection and a layover, allow roughly 16 to 20 hours in total.
Great Falls rewards visitors who enjoy history, art and the outdoors.
GTF is a small, easy airport about 3 miles (5 km) northwest of downtown, roughly a 10-minute drive. There is no dedicated airport bus, so most travellers collect a pre-booked hire car at the terminal, which is also the most practical way to explore Montana. Taxis and rideshare services operate, and some hotels provide a shuttle if you arrange it in advance.
UK passport holders travelling for tourism do not need a visa for stays of up to 90 days, but you must hold an approved ESTA under the Visa Waiver Programme before you fly, plus a passport valid for the length of your trip. The currency is the US dollar; check the pound-to-dollar rate before you exchange or load a travel card. No special vaccinations are required, but US medical care is expensive, so comprehensive travel insurance is essential. Montana runs on Mountain time, seven hours behind the UK.
Your allowance to Great Falls depends on the airline and the fare you book. The table below shows typical long-haul allowances so you know roughly what to expect — always confirm the exact limits with your airline before you fly.
| Fare type | Hand baggage | Checked baggage |
|---|---|---|
| Basic / Light economy | 1 small under-seat bag | Usually none — add for a fee |
| Standard economy | 1 cabin bag + 1 personal item | Typically 1 × 23 kg |
| Premium economy | 1–2 cabin bags + personal item | Typically 2 × 23 kg |
| Business / First | 2 cabin bags + personal item | Typically 2 × 32 kg |
Indicative only. Allowances vary by airline, route and fare — always check your airline's baggage policy.
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