My friend, at first I thought this was worth $200 high end for resellers, and $500 max for high end users.
However, we should always check raw, hard data. We want to confirm market demand with actual sales numbers.
If you visit NameBio here you’ll see that .travel domains with similar names to yours sell for $1 000+. Jet.travel sounds very natural and imo is even better than most of the .travel domains that were shown on the NameBio list.