Title: Cheap flights from Boulder to Milan (WBU to MIL) - Expedia.com ![Milan Cathedral, Duomo di Milano, Italy, one of the largest churches in the world on sunrise; Shutterstock ID 700247896; Purchase Order: -](https://images.trvl-media.com/place/508479/53d6c8b2-e270-4929-afd8-1d53afbb7db6.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/508479/53d6c8b2-e270-4929-afd8-1d53afbb7db6.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Boulder (WBU) to Milan (MIL) ## Popular airlines from Boulder, CO (WBU-Boulder Municipal) to Milan - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](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:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](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:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&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_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:WBU,to:MIL,departure:4/22/2026TANYT&leg2=from:MIL,to:WBU,departure:4/29/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](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) ## Travel information | Origin airport | Boulder Municipal | | ------------------- | ----------------- | | Destination airport | MIL-All Airports | | Distance | 5279 mi | \*Flight schedules are subject to change. \*Available to One Key members. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - Other - [Cologno Monzese Hotels ](https://www.expedia.com/Cologno-Monzese-Hotels.d6004377.Travel-Guide-Hotels) - [Apartments in Cologno Monzese ](https://www.expedia.com/Cologno-Monzese-Apartments.d6004377-aaApartments.Travel-Guide-Accommodation) - [Gay friendly Hotels in Cologno Monzese ](https://www.expedia.com/Cologno-Monzese-Hotels-LGBT-Welcoming-Hotel.0-0-d6004377-tLGBTWelcomingHotel.Travel-Guide-Filter-Hotels) - [Residences in Cologno Monzese ](https://www.expedia.com/Cologno-Monzese-Residences.d6004377-aaResidences.Travel-Guide-Accommodation) - 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