Are there nonstop flights from London (LHR) to Missoula (MSO)?

No. The fastest connection is via Minneapolis, about 10h 30m of total flying time.

What is the fastest connection from London (LHR) to Missoula (MSO)?

via Minneapolis ≈ 10h 30m, via Seattle ≈ 10h 48m, via Chicago ≈ 10h 59m (estimated flying time, excluding layovers).

from 27,500 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

London Heathrow Airport (LHR) to Missoula Montana Airport (MSO)・7,380 km

No nonstop flights. The fastest connection is via Minneapolis (MSP), about 10h 30m of flying time (layover not included).

With milesANA 27,500 miles+ (via ORD)JAL 37,000 miles+ (via SEA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.