If I booked United Airlines flight tickets through Expedia.com, how can i change my return flight date?
Since your flight is international and already used the outbound portion of your flights, i would advice, contacting expedia, have them check the validating carrier of your flights. Since your flights are with different airlines, it would be best to contact the validating carrier of your tickets, (validating carriers are airlines that were responsible for putting your ticket together.) Expoedia should know this. They can check it in your records. Ask expedia people to contact the validating carrier for chaning your return flights. (normally they will tell you to contact the airline yourself but trust me that will not do anygood since ticktes booked through travel agencies are handled differently by the airlines, and they have a dedicated line for that, in which expedia only knows, if they tell you to call the airline tell them to call the help desk of the airlines, in that way it’s easier for you and for them.) The change will actually depend on the rules and regulations of your ticket
