Title: Buffalo to Guam cheap flights from $1,548 (BUF to GUM) - Expedia.com ![Two Lovers Point featuring a gorge or canyon, tropical scenes and views](https://images.trvl-media.com/place/6105512/468fa0c7-13a7-4f1c-9b71-7e93ed7ea70f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Photo courtesy of Guam Visitors Bureau ![](https://images.trvl-media.com/place/6105512/468fa0c7-13a7-4f1c-9b71-7e93ed7ea70f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $1,548 Cheap Flights from Buffalo (BUF) to Guam (GUM) [View $1,548 flight on Fri, Apr 10, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:BUF,to:GUM,departure:4/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1547.09&airProductToken=AQquAQo1CMSYARIEMjA4NBiBLSDgXCifgIoDMKiBigM4TUAAWAFqCU1BSU5FWFRSQXIITU5FMFdSTUQKMwjEmAESAjI3GOBcIMhoKLeDigMw1IqKAzhNQAFYAWoJTUFJTkVYVFJBcghNTkUwV1JNRApACMSYARIENzgyNxjIaCCGZSjBjYoDMM-PigM4TUABWAFqCU1BSU5FWFRSQXIITU5FMFdSTUR6CQjLigESAzQxNRIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ## Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Barrigada - A.B. Won Pat International Airport (GUM) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:GUM,departure:3/28/2026TANYT&leg2=from:GUM,to:BUF,departure:4/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:BUF,to:GUM,departure:3/28/2026TANYT&leg2=from:GUM,to:BUF,departure:4/4/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### 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 Buffalo to Guam (BUF-GUM) Prices were available within the past 7 days and start at $1,548 for one-way flights and $2,254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,254 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2253.12&airProductToken=AQqjAQo1CMSYARIEMjA1MBiBLSDgXCjo1Z4DMPTWngM4S0AAWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKMwjEmAESAjI3GOBcIMhoKN3XngMwnd-eAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo1CMSYARIENzgyNxjIaCCGZSjv4J4DMPPingM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKpgEKNQjEmAESBDc4MjgYhmUgyGgo2oWfAzD8h58DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTgYyGgg47QBKIOOnwMwlJSfAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo2CMSYARIENDYzNhjjtAEggS0ogpWfAzDMlZ8DOEtAAVgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aEgwIARABGAEqAkRMMgAYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,261 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2260.51&airProductToken=AQqmAQo2CMSYARIENDk0OBiBLSDjtAEozc-eAzCc0J4DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTkY47QBIMhoKP7RngMwltmeAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo1CMSYARIENzgyNxjIaCCGZSjv4J4DMPPingM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKpgEKNQjEmAESBDc4MjgYhmUgyGgo2oWfAzD8h58DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTgYyGgg47QBKIOOnwMwlJSfAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo2CMSYARIENDYzORjjtAEggS0o2p6fAzCpn58DOEtAAVgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aEgwIARABGAEqAkRMMgAYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,265 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2264.21&airProductToken=AQqmAQo2CMSYARIENDYzORiBLSDjtAEo6NCeAzC20Z4DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTkY47QBIMhoKP7RngMwltmeAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo1CMSYARIENzgyNxjIaCCGZSjv4J4DMPPingM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKowEKNQjEmAESBDc4MjgYhmUgyGgo2oWfAzD8h58DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjMIxJgBEgIyNhjIaCDgXCjRkp8DMIWZnwM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKNQjEmAESBDEzODQY4FwggS0o1p-fAzDPoJ8DOEtAAVgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aEgwIARABGAEqAkRMMgAYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,265 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2264.95&airProductToken=AQqmAQo2CMSYARIENDYzORiBLSDjtAEo6NCeAzC20Z4DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTkY47QBIMhoKP7RngMwltmeAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo1CMSYARIENzgyNxjIaCCGZSjv4J4DMPPingM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKpAEKNQjEmAESBDc4MjgYhmUgyGgo2oWfAzD8h58DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjQIxJgBEgMxNzAYyGggzHwo1pKfAzC6mJ8DOEtAAVgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgQ0OTI4GMx8IIEtKIujnwMwhaSfAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWhIMCAEQARgBKgJETDIAGAEiBAgBEAEoAigDKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,268 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2267.90&airProductToken=AQqmAQo2CMSYARIENDYzNhiBLSDjtAEoztKeAzCd054DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTkY47QBIMhoKJ7dngMwtuSeAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo1CMSYARIENzgyNxjIaCCGZSiP7J4DMJPungM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKpgEKNQjEmAESBDc4MjgYhmUgyGgo2oWfAzD8h58DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTgYyGgg47QBKIOOnwMwlJSfAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo2CMSYARIENDk0ORjjtAEggS0or5qfAzD1mp8DOEtAAVgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aEgwIARABGAEqAkRMMgAYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,272 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2271.60&airProductToken=AQqmAQo2CMSYARIENDYzNhiBLSDjtAEoztKeAzCd054DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgMxNTkY47QBIMhoKJ7dngMwtuSeAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWgo1CMSYARIENzgyNxjIaCCGZSiP7J4DMJPungM4S0ABWAFqCU1BSU5DTEFTQ3IIS0xYNjNOTVoKpAEKNQjEmAESBDc4MjgYhmUgyGgo2oWfAzD8h58DOEtAAFgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjQIxJgBEgMxODgYyGgg4Fwo_JGfAzCrmJ8DOEtAAVgBaglNQUlOQ0xBU0NyCEtMWDYzTk1aCjUIxJgBEgQxMzg0GOBcIIEtKNafnwMwz6CfAzhLQAFYAWoJTUFJTkNMQVNDcghLTFg2M05NWhIMCAEQARgBKgJETDIAGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,302 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2301.35&airProductToken=AQqgAQozCNWCARIDNTQzGIEtILJxKPDPngMwttSeAzhWQABYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjQI1YIBEgQxNTA5GLJxIKdbKN7VngMwudieAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjMI1YIBEgMyMDEYp1sghmUooeGeAzDy5J4DOFZAAVgBaghFQ09CQVNJQ3IIVkxYMzNTQkYKoAEKMwjVggESAzg0ORiGZSCnGyiEh58DMOqInwM4VkAAWAFqCEVDT0JBU0lDcghWTFgzM1NCRgozCNWCARIDODA0GKcbIIgYKLaRnwMwuJefAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjQI1YIBEgQ0ODIzGIgYIIEtKJeYnwMw3pifAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGEgwIARABGAEqAlVBMgAYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,302 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2301.86&airProductToken=AQqfAQozCNWCARIDNTQzGIEtIK4cKPDPngMw3NCeAzhWQABYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjMI1YIBEgMyMTkYrhwgp1sowtGeAzDp1Z4DOFZAAVgBaghFQ09CQVNJQ3IIVkxYMzNTQkYKMwjVggESAzEzMhinWyCGZSjQ3Z4DMKzkngM4VkABWAFqCEVDT0JBU0lDcghWTFgzM1NCRgqiAQozCNWCARIDODQ5GIZlIKcbKISHnwMw6oifAzhWQABYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjQI1YIBEgMxMzAYpxsgxI0BKJWSnwMwl5ifAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjUI1YIBEgQxNzMxGMSNASCBLSj4mZ8DMNmanwM4VkABWAFqCEVDT0JBU0lDcghWTFgzM1NCRhIMCAEQARgBKgJVQTIAGAEiBAgBEAEoAigDKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,310 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2309.36&airProductToken=AQqgAQozCNWCARIDNTQzGIEtILJxKPDPngMwttSeAzhWQABYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjQI1YIBEgQxNTA5GLJxIKdbKN7VngMwudieAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjMI1YIBEgMyMDEYp1sghmUooeGeAzDy5J4DOFZAAVgBaghFQ09CQVNJQ3IIVkxYMzNTQkYKoAEKMwjVggESAzg0ORiGZSCnGyiEh58DMOqInwM4VkAAWAFqCEVDT0JBU0lDcghWTFgzM1NCRgozCNWCARIDODA0GKcbIIgYKLaRnwMwuJefAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjQI1YIBEgQ0MzM1GIgYIIEtKJ-hnwMw5qGfAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGEgwIARABGAEqAlVBMgAYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Tue, Dec 1 - Sun, Dec 6 BUF Buffalo GUM Guam $2,310 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BUF,to:GUM,departure:12/1/2026TANYT&leg2=from:GUM,to:BUF,departure:12/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:2309.89&airProductToken=AQqfAQozCNWCARIDNTQzGIEtIK4cKPDPngMw3NCeAzhWQABYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjMI1YIBEgMyMTkYrhwgp1sowtGeAzDp1Z4DOFZAAVgBaghFQ09CQVNJQ3IIVkxYMzNTQkYKMwjVggESAzEzMhinWyCGZSjQ3Z4DMKzkngM4VkABWAFqCEVDT0JBU0lDcghWTFgzM1NCRgqiAQozCNWCARIDODQ5GIZlIKcbKISHnwMw6oifAzhWQABYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjQI1YIBEgMxMzAYpxsgxI0BKJWSnwMwl5ifAzhWQAFYAWoIRUNPQkFTSUNyCFZMWDMzU0JGCjUI1YIBEgQzNTI5GMSNASCBLSjIn58DMJ6gnwM4VkABWAFqCEVDT0JBU0lDcghWTFgzM1NCRhIMCAEQARgBKgJVQTIAGAEiBAgBEAEoAigDKAQwAQ) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.) cost? ### What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### Which airlines fly direct from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ### How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight with Expedia? ### What airports do you fly into for Guam from Buffalo Niagara Intl. (BUF)? ### Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.) at the last minute? ### Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.) flight and hotel package? ### Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Guam (GUM-A.B. Won Pat Intl.)? ## Travel information | Origin airport | Buffalo Niagara Intl. | | ------------------- | --------------------- | | Destination airport | A.B. Won Pat Intl. | | Airlines serving | Delta, United | | Roundtrip price | $2,253 | | Distance | 7663 mi | ## Book with confidence # Buffalo to Guam Flights The cheapest times to fly from Buffalo to Guam 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 Buffalo to Guam are during the month of December. You can find some of the cheapest flights from Buffalo to Guam with Expedia's search tool and vast selection of airlines. The best time to book a flight from Buffalo to Guam Sunday is one of the best days to book for cheap flights from Buffalo to Guam: 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 Buffalo to Guam 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 Buffalo to Guam in 2026\. You can also book with separate airlines for your outbound and return journeys, from $1,548 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 Buffalo to Guam 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 Buffalo to Guam 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. \*Flight schedules are subject to change. \*Available to One Key members.