Yellowstone and Grand Teton: cheap flights and the best time to go
Geysers, wildlife and mountain lakes. Wyoming · National parks & outdoors, Family
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Cheapest round trip
Safety level
U.S. U.S. destination: no State Department travel advisory
The State Department's travel advisories
Levels: 1 Exercise normal precautions · 2 Exercise increased caution · 3 Reconsider travel · 4 Do not travel. Read the advisory before you book; it can change. Checked 2026-10-07.
Best time to go
For the weather: June, July, August (highs of 62–82°F, not too much rain). With fares from your airport, the best months weigh weather 60% and price 40%.
| Month | High | Low | Rain | Cheapest round trip from JFK |
|---|---|---|---|---|
| January | 26°F | 2°F | 3.0 in | … |
| February | 30°F | 3°F | 2.7 in | … |
| March | 38°F | 9°F | 3.2 in | … |
| April | 45°F | 17°F | 3.1 in | … |
| May | 54°F | 26°F | 2.8 in | … |
| June (a best month) | 63°F | 32°F | 2.3 in | … |
| July (a best month) | 74°F | 37°F | 1.0 in | … |
| August (a best month) | 72°F | 35°F | 1.2 in | … |
| September | 62°F | 29°F | 1.7 in | … |
| October | 47°F | 21°F | 2.4 in | … |
| November | 33°F | 10°F | 3.1 in | … |
| December | 25°F | 2°F | 3.5 in | … |
Typical daily high and low and total rain, 1991–2020: NOAA NCEI GHCN-Daily, station Thumb Divide (7 km away). ★ = the best three months. Fares are the cheapest found for trips leaving that month in the next year.
Prices are per seat for a round trip in economy; with more than one traveler they're the total for your party (babies under 2 on a lap need no seat). The booking site shows the final price for everyone.