Airline ticket fares may not get cheaper despite an agreement between Washington and Tehran that has caused oil prices to fall below $80/bbl.

Limited Seat Availability, Steady Demand Analysts cited by Business Insider in a report on Tuesday said that airlines have little reason to roll back fares or baggage charges, even after crude prices cooled.

KAYAK data cited in the report said that the average U.S. domestic fare climbed about 8% after the war began, while international prices rose around 18%.

Aviation and travel analysts said that carriers were benefiting from limited seat availability and steady demand, which reduces pressure to discount ticket fares.

The analysts also pointed to uncertainty around the agreement, including the fact that Israel is not directly included as part of the negotiations.