The honest answer to when you should fly Prague to Dallas is mostly about weather and demand at the far end. On three years of daily observations at the arrival airport, Mar-Apr, Oct-Nov gives the most comfortable combination of temperature and rainfall in Dallas.
Averages below come from three full years of daily readings at Dallas’s main airport, not from a seasonal generalisation. The warmest month is August (average high 37°C), the coolest is January (average low 2°C), and the wettest is May (194 mm).
| Month | Avg high | Avg low | Rainfall | Wet days | Prague high |
|---|---|---|---|---|---|
| January | 12°C | 2°C | 86 mm | 6 | 3°C |
| February | 18°C | 7°C | 42 mm | 4 | 6°C |
| March good | 24°C | 12°C | 92 mm | 7 | 12°C |
| April good | 25°C | 16°C | 174 mm | 12 | 16°C |
| May | 28°C | 19°C | 194 mm | 16 | 20°C |
| June | 33°C | 24°C | 151 mm | 12 | 25°C |
| July | 35°C | 25°C | 78 mm | 9 | 26°C |
| August | 37°C | 26°C | 52 mm | 4 | 27°C |
| September | 33°C | 22°C | 82 mm | 8 | 22°C |
| October good | 28°C | 17°C | 123 mm | 6 | 15°C |
| November good | 21°C | 11°C | 81 mm | 7 | 7°C |
| December | 16°C | 7°C | 85 mm | 5 | 5°C |
Climate data: Open-Meteo reanalysis archive.
Dallas runs 8 hours behind Prague. Travelling west is generally the easier direction, and you gain usable hours on the day you fly out.
We publish observed fares for this route when we have them, and say nothing when we do not — there is no estimate on this page. What holds regardless of the route:
Midweek departures are consistently cheaper than Friday and Sunday on most routes, because that is where demand sits rather than because of any pricing trick. Where we have observed fares for Prague–Dallas, the weekday breakdown appears further down this page; where we do not, we leave it out rather than estimate it.
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