--- title: "Kalispell to London cheap flights from $334 (FCA to LON) - Expedia" description: "Book cheap Flights from Kalispell (FCA) to London (LON) start at $334 for one-way and $836 for round trip. Earn your airline miles on top of our rewards!" canonical: "https://www.expedia.com/lp/flights/fca/lon/kalispell-to-london" language: en-US market: US currency: USD prices_as_of: 2026-11-12T23:15:36Z --- # $334 Cheap Flights from Kalispell (FCA) to London (LON) ![The Houses of Parliament and Big Ben in London, with a red double-decker bus crossing the Lambeth Bridge.](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [View $334 flight on Sat, Apr 24, 2027](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/24/2027TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:334.00&airProductToken=AQqiAQo0CMSYARIEMzc5OBhFIPISKMqpqwMwuKqrAzhFQABYAWoJTUFJTkJBU0lDcghWTFg5MU5CTAo0CMSYARIDOTEyGPISIOBcKICsqwMw5a2rAzhFQAFYAWoJTUFJTkJBU0lDcghWTFg5MU5CTAo0CMSYARICMzAY4Fwg64kBKLGzqwMwpberAzhFQAFYAWoJTUFJTkJBU0lDcghWTFg5MU5CTBIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ## Popular airlines from Glacier Park Intl. Airport (FCA) to London [Alaska Airlines](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) [British Airways](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) [Delta](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) [United](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) [KLM](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) [Air France](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) [Virgin Atlantic](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LON,departure:11/26/2026TANYT&leg2=from:LON,to:FCA,departure:12/3/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Kalispell to London (FCA-LON) Prices were available within the past 7 days and start at $334 for one-way flights and $836 for roundtrip, for the period specified. Prices and availability are subject to change. All deals One way Roundtrip [Select United flight, departing Wed, Feb 17 from Kalispell to London, returning Fri, Feb 19, priced at $836 Found 5 days ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:2/17/2027TANYT&leg2=from:LHR,to:FCA,departure:2/19/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:835.59&airProductToken=AQpvCjUI1YIBEgQ2MDMyGEUgsnEorsGlAzDfwqUDOExAAFgBagoxX2Jhc2ljZWNvcghMTEk5MFRCUQo2CNWCARIDOTMwGLJxIOuJASiow6UDMKPIpQM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJRCqUBCjYIzJABEgM5MjMY64kBIKUEKOLRpQMwwdKlAzhMQABYAWoKMV9iYXNpY2Vjb3IITExJOTBUQlEKNQjVggESAzE4MRilBCCDaSiC06UDMPjXpQM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJRCjQI1YIBEgMyNDUYg2kgRSiJ2aUDMJnapQM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) Wed, Feb 17 - Fri, Feb 19 · FCA · LHR · Roundtrip [Select United flight, departing Wed, Feb 17 from Kalispell to London, returning Fri, Feb 19, priced at $848 Found 5 days ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:2/17/2027TANYT&leg2=from:LHR,to:FCA,departure:2/19/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:847.59&airProductToken=AQqnAQo1CNWCARIENTk5NBhFIK4cKIHBpQMw2MKlAzhMQABYAWoKMV9iYXNpY2Vjb3IITExJOTBUQlEKNgjVggESBDIyMDIYrhwgiBgohcOlAzD%5Fw6UDOExAAFgBagoxX2Jhc2ljZWNvcghMTEk5MFRCUQo2CNWCARIDOTI0GIgYIOuJASjDxKUDMIrIpQM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJRCqUBCjYIzJABEgM5MjMY64kBIKUEKOLRpQMwwdKlAzhMQABYAWoKMV9iYXNpY2Vjb3IITExJOTBUQlEKNQjVggESAzE4MRilBCCDaSiC06UDMPjXpQM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJRCjQI1YIBEgMyNDUYg2kgRSiJ2aUDMJnapQM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) Wed, Feb 17 - Fri, Feb 19 · FCA · Kalisp · ell · LHR · Roundtrip [Select Virgin Atlantic flight, departing Wed, Apr 14 from Kalispell to London, returning Wed, Apr 21, priced at $893 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/14/2027TANYT&leg2=from:LHR,to:FCA,departure:4/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:892.89&airProductToken=AQp8CjwI1qYBEgQzNzQ2GEUg8hIol7aqAzCFt6oDOFRAAFgBagVMSUdIVHIIT0xYOTFOQkx6CgjEmAESBDM4MDEKPAjWpgESBDQwMjAY8hIg64kBKN24qgMwnL2qAzhUQAFYAWoFTElHSFRyCE9MWDkxTkJMeggIxJgBEgI1MAq-AQo%5FCNamARIENzA0OBjriQEggJMBKNeAqwMwrIGrAzhUQABYAWoFTElHSFRyCE9MWDkxTkJMegoIy5gBEgQxMDA0Cj0I1qYBEgQ3MTQ5GICTASDyEijig6sDMLqIqwM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoJCMuYARIDNjA5CjwI1qYBEgQzNzQ3GPISIEUoqImrAzCTiqsDOFRAAVgBagVMSUdIVHIIT0xYOTFOQkx6CgjEmAESBDE0NjQSCggBEAEYASoCVlMYASIECAEQASgCKAMoBDAB) Wed, Apr 14 - Wed, Apr 21 · FCA · LHR · Roundtrip [Select Alaska Airlines flight, departing Wed, Feb 17 from Kalispell to London, returning Fri, Feb 19, priced at $897 Found 5 days ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:2/17/2027TANYT&leg2=from:LHR,to:FCA,departure:2/19/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:896.89&airProductToken=AQplCjAIwaYBEgQyNDA5GEUgkgEoh8GlAzDowaUDOFhAAFgBagVTQVZFUnIIT0xYOVpPQk4KMQjBpgESAzEwMBiSASDriQEooMSlAzDkyKUDOFhAAVgBagVTQVZFUnIIT0xYOVpPQk4KZQoxCMGmARIDMTAxGOuJASCSASiV1aUDMPLZpQM4WEAAWAFqBVNBVkVScghPTFg5Wk9CTgowCMGmARIEMjI4NBiSASBFKJHcpQMw49ylAzhYQAFYAWoFU0FWRVJyCE9MWDlaT0JOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwDQ) Wed, Feb 17 - Fri, Feb 19 · FCA · LHR · Roundtrip [Select Virgin Atlantic flight, departing Wed, Apr 14 from Kalispell to London, returning Wed, Apr 21, priced at $900 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/14/2027TANYT&leg2=from:LHR,to:FCA,departure:4/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:899.69&airProductToken=AQp8CjwI1qYBEgQzNzQ2GEUg8hIol7aqAzCFt6oDOFRAAFgBagVMSUdIVHIIT0xYOTFOQkx6CgjEmAESBDM4MDEKPAjWpgESBDQwMjAY8hIg64kBKN24qgMwnL2qAzhUQAFYAWoFTElHSFRyCE9MWDkxTkJMeggIxJgBEgI1MAq8AQo-CNamARIENjY1ORjriQEg4jAo-%5F6qAzDQ%5F6oDOFRAAFgBagVMSUdIVHIIT0xYOTFOQkx6CgjBjAESBDEzODEKPAjWpgESBDM5ODMY4jAg8hIo3ICrAzDghasDOFRAAVgBagVMSUdIVHIIT0xYOTFOQkx6CQjEmAESAzMwMQo8CNamARIENTQwMRjyEiBFKOOGqwMw0YerAzhUQAFYAWoFTElHSFRyCE9MWDkxTkJMegoIxJgBEgQzNzk4EgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) Wed, Apr 14 - Wed, Apr 21 · FCA · LHR · Roundtrip [Select United flight, departing Wed, Apr 14 from Kalispell to London, returning Wed, Apr 21, priced at $904 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/14/2027TANYT&leg2=from:LHR,to:FCA,departure:4/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:903.39&airProductToken=AQpuCjUI1YIBEgQxMTk5GEUgg2korbeqAzCwuKoDOExAAFgBagoxX2Jhc2ljZWNvcghMTEk5MFRCUQo1CNWCARICMjcYg2kg64kBKOe4qgMwiL2qAzhMQABYAWoKMV9iYXNpY2Vjb3IITExJOTBUQlEKsgEKQwjVggESBDg4MTIY64kBIKUEKMb%5FqgMwpYCrAzhMQABYAWoKMV9iYXNpY2Vjb3IITExJOTBUQlF6CgjMkAESBDg4MTIKNQjVggESAzE4MRilBCCDaSjwgKsDMNeFqwM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJRCjQI1YIBEgM2OTYYg2kgRSitiKsDMLKJqwM4TEAAWAFqCjFfYmFzaWNlY29yCExMSTkwVEJREgoIARABGAEqAlVBGAEiBAgBEAEoAigDKAQwCw) Wed, Apr 14 - Wed, Apr 21 · FCA · LHR · Roundtrip [Select Delta flight, departing Wed, Apr 14 from Kalispell to London, returning Wed, Apr 21, priced at $905 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/14/2027TANYT&leg2=from:LHR,to:FCA,departure:4/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:904.19&airProductToken=AQqZAQowCMSYARIEMzgwMRhFIPISKJe2qgMwhbeqAzhFQABYAWoFTElHSFRyCE9MWDkxTkJMCjEIxJgBEgM4NDEY8hIgi7gBKNa3qgMwz7iqAzhFQAFYAWoFTElHSFRyCE9MWDkxTkJMCjII1qYBEgMxNDIYi7gBIOuJASj4uaoDMIK%5FqgM4VEABWAFqBUxJR0hUcghPTFg5MU5CTAq8AQo-CNamARIENjY1ORjriQEg4jAo-%5F6qAzDQ%5F6oDOFRAAFgBagVMSUdIVHIIT0xYOTFOQkx6CgjBjAESBDEzODEKPAjWpgESBDM5ODMY4jAg8hIo3ICrAzDghasDOFRAAVgBagVMSUdIVHIIT0xYOTFOQkx6CQjEmAESAzMwMQo8CNamARIENTQwMRjyEiBFKOOGqwMw0YerAzhUQAFYAWoFTElHSFRyCE9MWDkxTkJMegoIxJgBEgQzNzk4EgoIARABGAEqAlZTGAEiBAgBEAEoAigDKAQwAQ) Wed, Apr 14 - Wed, Apr 21 · FCA · LHR · Roundtrip [Select Alaska Airlines flight, departing Tue, Apr 20 from Kalispell to London, returning Thu, Apr 29, priced at $906 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/20/2027TANYT&leg2=from:LHR,to:FCA,departure:4/29/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:905.60&airProductToken=AQplCjAIwaYBEgQyMzMxGEUgkgEokfeqAzDz96oDOFhAAFgBagVTQVZFUnIIT0xYOVpPQk4KMQjBpgESAzEwMBiSASDriQEozv6qAzCNg6sDOFhAAVgBagVTQVZFUnIIT0xYOVpPQk4KZQoxCMGmARIDMTAxGOuJASCSASiA3qsDMOLiqwM4WEAAWAFqBVNBVkVScghPTFg5Wk9CTgowCMGmARIEMjI4NBiSASBFKPXjqwMwx-SrAzhYQAFYAWoFU0FWRVJyCE9MWDlaT0JOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwDQ) Tue, Apr 20 - Thu, Apr 29 · FCA · LHR · Roundtrip [Select Virgin Atlantic flight, departing Wed, Apr 14 from Kalispell to London, returning Wed, Apr 21, priced at $908 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/14/2027TANYT&leg2=from:LHR,to:FCA,departure:4/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:907.29&airProductToken=AQq-AQo8CNamARIEMzM1MxhFIMx8KPG2qgMwmbiqAzhUQABYAWoFTElHSFRyCE9MWDkxTkJMegoIxJgBEgQyODYzCj0I1qYBEgQ0MDU4GMx8IICTASjJuKoDMLO8qgM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoJCMSYARIDMTY0Cj8I1qYBEgQ3MDYwGICTASDriQEo77yqAzDJvaoDOFRAAVgBagVMSUdIVHIIT0xYOTFOQkx6CgjLmAESBDEwMDUKvAEKPgjWpgESBDY2NTkY64kBIOIwKPv-qgMw0P-qAzhUQABYAWoFTElHSFRyCE9MWDkxTkJMegoIwYwBEgQxMzgxCjwI1qYBEgQzOTgzGOIwIPISKNyAqwMw4IWrAzhUQAFYAWoFTElHSFRyCE9MWDkxTkJMegkIxJgBEgMzMDEKPAjWpgESBDU0MDEY8hIgRSjjhqsDMNGHqwM4VEABWAFqBUxJR0hUcghPTFg5MU5CTHoKCMSYARIEMzc5OBIKCAEQARgBKgJWUxgBIgQIARABKAIoAygEMAE) Wed, Apr 14 - Wed, Apr 21 · FCA · LHR · Roundtrip [Select KLM flight, departing Wed, Apr 14 from Kalispell to London, returning Wed, Apr 21, priced at $929 Found 8 hours ago](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:4/14/2027TANYT&leg2=from:LHR,to:FCA,departure:4/21/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:928.49&airProductToken=AQqmAQo8CMuYARIENjg5NxhFIPISKIq5qgMw-LmqAzhWQABYAWoFTElHSFRyCFZMWDkxTkJMegoIxJgBEgQzNzk4CjEIy5gBEgM2MTAY8hIggJMBKNK6qgMwh7-qAzhWQAFYAWoFTElHSFRyCFZMWDkxTkJMCjMIy5gBEgQxMDE3GICTASDriQEo4MGqAzCrwqoDOExAAVgBagVMSUdIVHIIVkxYOTFOQkwKvgEKPwjWpgESBDcwNDkY64kBIICTASjFgasDMJWCqwM4VEAAWAFqBUxJR0hUcghPTFg5MU5CTHoKCMuYARIEMTAwNgo9CNamARIENzE0ORiAkwEg8hIo4oOrAzC6iKsDOFRAAVgBagVMSUdIVHIIT0xYOTFOQkx6CQjLmAESAzYwOQo8CNamARIEMzc0NxjyEiBFKKiJqwMwk4qrAzhUQAFYAWoFTElHSFRyCE9MWDkxTkJMegoIxJgBEgQxNDY0EgoIARABGAEqAktMGAEiBAgBEAEoAigDKAQwAQ) Wed, Apr 14 - Wed, Apr 21 · FCA · LHR · Roundtrip ## Alternative airports near London Prices were available within the past 7 days. Prices and availability are subject to change. [Select flight to Heathrow LHR. Average driving time to city center is 34 minutes.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LHR,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 34 min · Search flights [Select flight to Gatwick LGW. Average driving time to city center is 51 minutes.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LGW,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 51 min · Search flights [Select flight to Stansted STN. Average driving time to city center is 51 minutes.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:STN,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 51 min · Search flights [Select flight to Birmingham Airport BHX. Average driving time to city center is 2 hours 1 minute.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:BHX,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 2 h 1 min · Search flights [Select flight to Luton LTN. Average driving time to city center is 45 minutes.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LTN,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 45 min · Search flights [Select flight to London City LCY. Closest option available. Average driving time to city center is 21 minutes.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:LCY,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 21 min · Search flights [Select flight to Southampton SOU. Average driving time to city center is 1 hour 29 minutes.](https://www.expedia.com/Flights-Search?leg1=from:FCA,to:SOU,departure:11/26/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 1 h 29 min · Search flights ## Book with confidence ### Kalispell to London Flights #### The cheapest times to fly from Kalispell to London On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Kalispell to London are during the month of February. You can find some of the cheapest flights from Kalispell to London with Expedia's search tool and vast selection of airlines. #### The best time to book a flight from Kalispell to London Sunday is one of the best days to book for cheap flights from Kalispell to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. #### How to find cheap round-trip tickets from Kalispell to London Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Kalispell to London in 2026\. You can also book with separate airlines for your outbound and return journeys, from $334 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Kalispell to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Kalispell to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. *\*Terms apply.* *Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages.* ## Travel information | Origin airport | Glacier Park Intl. Airport | | ------------------- | ------------------------------------------------------------------------------------------ | | Destination airport | Heathrow Airport | | Distance | 4,515 miles away | | Airlines serving | Alaska Airlines, British Airways, Delta, United, KLM, Air France, Virgin Atlantic, Finnair | | Popular airline | Alaska Airlines | | Roundtrip price | $836 | ## Explore a world of travel with Expedia - [Flights](?equalTargetTab=tab-0) - [Flights from Mexico City (MEX) to London (LON)](https://www.expedia.com/lp/flights/mex/lon/mexico-city-to-london) - [Flights from Port of Spain (POS) to London (LON)](https://www.expedia.com/lp/flights/pos/lon/port-of-spain-to-london) - [Flights from Salt Lake City (SLC) to London (LON)](https://www.expedia.com/lp/flights/slc/lon/salt-lake-city-to-london) - [Flights from Manila (MNL) to London (LON)](https://www.expedia.com/lp/flights/mnl/lon/manila-to-london) - [Flights from Dublin (DUB) to London (LON)](https://www.expedia.com/lp/flights/dub/lon/dublin-to-london) - 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Airport (EWR) to London (LON)](https://www.expedia.com/lp/flights/ewr/lon/newark-liberty-intl-airport-to-london) - [Flights from Phoenix (PHX) to London (LHR)](https://www.expedia.com/lp/flights/phx/lhr/phoenix-to-london) \*Available to One Key members. ## Other language versions ```yaml hreflang: x-default: https://www.expedia.com/lp/flights/fca/lon/kalispell-to-london vi-VN: https://www.expedia.com.vn/lp/flights/fca/lon/kalispell-to-london ar: https://www.expedia.sa/lp/flights/fca/lon/kalispell-to-london es: https://www.expedia.com/es/lp/vuelos/fca/lon/kalispell-a-londres en-US: https://www.expedia.com/lp/flights/fca/lon/kalispell-to-london ```