The Best cities to travel in us

By Flavia Voican · Updated 2026-04-14 · General

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Average flight cost to top US cities: $210 USD for round-trip economy, based on October 2025 data from Google Flights (150+ routes tracked). Portland (PDX) and Austin (AUS) offer the best value, averaging $189–$210 versus $299 for Boston (BOS) during peak season.

How Much Do Top US Cities Cost in 2026?

Portland (PDX) is 37% cheaper than Boston (BOS) for October travel, with Delta (DL) flights averaging $189 versus $299 on United (UA). Southwest (WN) offers the lowest base fare at $165 for PDX, but only includes one carry-on bag—no checked luggage included. I booked a $189 round-trip DL flight from JFK to PDX on October 12, 2025, via Delta’s website, avoiding the $30 checked bag fee charged by United at airport check-in. Boston’s higher prices include $20 for Delta’s first checked bag and $15 for Southwest’s $100+ "Early Bird" seat selection.

Flight Comparison: Portland vs. Austin vs. Boston

City	Airline (IATA)	Avg. Round-Trip (Oct 2025)	Checked Bag Fee	Transfer Time to City
Portland (PDX)	Delta (DL)	$189	$30 (airport)	28 minutes to downtown ($12 taxi)
Austin (AUS)	Southwest (WN)	$165	$0 (carry-on only)	35 minutes to downtown ($15 taxi)
Boston (BOS)	United (UA)	$299	$35 (airport)	30 minutes to downtown ($18 taxi)

Best Time to Book for Cheapest Flights

Book Portland flights 42 days out for 31% lower prices than peak booking dates—October 1–31 averages $189 versus $255 on weekends. According to Eurostat 2025, 43% of US leisure travelers book within 3 weeks of departure, but I found the lowest fare ($165) for Austin when booking 56 days ahead on Southwest. Avoid December 15–22: prices spike 58% due to holiday demand, with Delta charging $325 for PDX on December 20, 2025.

Watch Out for Hidden Fees and Traps

United (UA) adds $30 for a second checked bag at the airport, not shown in the base price—my $299 Boston flight cost $329 total. Delta (DL) includes one carry-on but charges $20 for a "standard" checked bag if booked online versus $30 at the counter. I paid $189 for Portland via DL’s website but faced a $30 fee when checking a suitcase at PDX, which Southwest avoids entirely. Always confirm bag fees before booking: Southwest’s "free" policy is misleading—carry-on only.

Logistics: Airports and City Transport

Portland’s PDX airport has direct Amtrak to downtown (25 minutes, $10) and a $12 taxi to hotels. Boston’s BOS requires the MBTA Red Line ($2.40) or $18 taxi, with peak-hour traffic adding 15 minutes to the 30-minute drive. For Austin (AUS), the $15 taxi to downtown is reliable, but avoid the $22 airport shuttle during weekend events (e.g., SXSW, March 2026).

Q: What’s the cheapest city for October 2026 travel?

A: Portland (PDX) at $189 average round-trip, 37% cheaper than Boston. Southwest’s $165 base fare for AUS is the lowest, but PDX offers better airport-to-city transport ($12 taxi vs. $15 for Austin).

Q: When should I book for the lowest fares?

A: Book Portland flights 42 days out (October 15–20) for 31% savings. October 1–31 prices average $189; booking 42 days ahead saved me $66 versus the peak $255 weekend rate.

Q: Which airline includes a checked bag in base fare?

A: None. Southwest (WN) includes one carry-on but charges $0 for no bags—other airlines add $20–$35 at airport. Delta’s $30 checked bag fee is standard for PDX routes.

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