https://www.devex.com/people/how-can-i-change-expedia-airlines-flight-2217193
You can also call Expedia at +1-855-718-1238 to change your flight. Expedia may waive the change fee if you request a change due to a medical emergency or the death of an immediate family member. You’ll need to include a medical certificate or death certificate with your request.
If your flight is canceled, you can call Expedia at +1-855-718-1238 for assistance. Expedia can help you rebook or find a refund.
You can also check your online itinerary to see if your reservation qualifies for free cancellation or a no-fee change. If you booked a package vacation, you’ll need to cancel your flight and lodging separately.
You can change your Expedia airline flight by logging into your account and selecting “Change Flight” for your booking, or by calling Expedia customer service at +1 (855) 718-1238. Keep in mind that airlines may charge a fee for changes, and there might be a difference in airfare. Always review your flight confirmation for specific change policies and potential costs.
To change an Expedia flight, contact their customer support by phone +1 (855) 718-1238 or online. Have your booking details ready and explain the changes you need. Expedia will inform you of airline policies, change fees, and any fare differences. Be aware that fees vary and non-refundable tickets may have restrictions.