My husband doesn’t want me traveling out the country without him

So my husband and I have been married for over a year and because we have no kids we like to travel a lot. Last year we traveled out the country three times and flew to different states throughout at the year. One of the times I went to a different country last year I went with my sister who is also newly married. My husband felt uneasy about us women going out to Mexico by ourselves but he didn’t push the issue too much. Well my sister and I signed up for a vacation club membership so now we have a lot of different discounts for vacation and traveling. My husband felt like we should have consulted our husbands because it is a financial decision where both my sister and I names are on a contract. When we came back from the country we traveled from my husband was upset that we didn’t not consult our husbands and he told me in private that he feels like we should not be traveling out of the country this early in our marriages without our husbands.

So a few days ago my sister asked me where she and I are traveling to next. Her husband is working on getting his paperwork to travel out of the country, so he’s not able to travel with us right now. I don’t want to sound like I’m being controlled by my husband if I tell my sister that I’m only going to go if my husband goes with me. I also would like to spend quality time with my sister due to the fact that we live in different states. How should I go about this on both my husband and my sister?