I booked two non-refundable tickets for travel in June. Four days later, the price dropped by $60. Can I cancel my flight and rebook at the lower price?
As happens with most air-travel questions, the answer will vary by airline and by your specific situation. Generally, however, the answer is yes—with a few caveats.
It's nearly impossible to snag a refund on a non-refundable ticket no matter what the situation. If the price drops after you book, however, your airline may give you a travel voucher for a future flight. That's where the first caveat comes in. Many airlines charge a hefty change fee, which could negate the voucher altogether. The notable exception is Southwest, which does not charge a change fee.
If you purchase your flight through an online travel supplier such as Expedia and find a lower price within 24 hours, Expedia will credit or refund the difference and give you a travel coupon. That's where the second caveat comes in. The lower price must apply to the exact same itinerary as yours, not just the same cities and travel dates. Orbitz and Travelocity offer similar policies.
In your situation, however, you'd have to pay the airline's change fee, which could end up costing you more than what you'd get in the form of a voucher.