How Axel works

When to fly: cheapest months and holidays on 50 popular routes

Which months and holidays cost more on the routes Axel's travelers search most, from round-trip fares Axel saw Sep 21 – Oct 21, 2026.

From San Francisco Bay Area

From New York

From Los Angeles

From Seattle

From Chicago

From Detroit

From Denver

From Boston

From Washington, DC

From Atlanta

How Axel measures this

  • Fares: the round trips Axel's flight searches priced Sep 21 – Oct 21, 2026, economy, adults only, 2 to 21 nights, shown per adult. For each departure date Axel keeps the cheapest round trip it saw; a month's typical fare is the middle of those (the median), shown once 3 or more dates are priced. "Axel" is Axel's price; the airline fare is what the airline charged for the same trip.
  • Holidays are compared with every priced date outside the holiday windows. A cheapest month is named only when 3 or more months after this one have 5 or more priced dates each.
  • Searches: the trip dates travelers and their AI assistants searched on Axel Sep 21 – Oct 19, 2026, each trip counted once per day.
  • These are fares already seen, not quotes or a forecast. Prices change daily: open a month or trip for live prices.