Johnny Jet suggests checking air quality before your travel. With all the wildfires happening in the Southwest, there are a lot of destinations that have really terrible air right now. The US Gov has AirNow.gov. Leo recommends Purple Air because it has local sensors.
You also want to be mindful of quarantining rules for the state or country your traveling to. Currently, Hawaii has a two-week quarantine. Dubai is using dogs to sniff out people who have been infected with CoVid19.
United has a great site on what destination's travel restrictions are. Check it out here.