Low fare calendar for Southwest flights
This calendar is calculated by Lowfarecalendar.com using ticket prices and our own algorithm. It gives an independent indication of when Southwest fares are usually lower or higher.
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Popular Southwest routes
These are non-stop flights where Southwest is the sole operator with daily flights. The colored bars indicates when its most affordable or not to fly. Click on any block to show the price calendar.
Las Vegas (LAS) to Kauai Island (LIH)
6h 35m – Price info not availableRoundtrip tickets price estimation for Las Vegas to Kauai Island (Jul 2026 - Jul 2027)
LFC Comment
“Across Las Vegas–Kauai Island, lowest averages in August 2026, highest in July 2027. Budget-friendly in August–November 2026. Christmas and Summer often drives demand.”
Las Vegas (LAS) to Kailua-Kona (KOA)
6h 15m – Price info not availableRoundtrip tickets price estimation for Las Vegas to Kailua-Kona (Jul 2026 - Dec 2026)
LFC Comment
“Las Vegas–Kailua-Kona: fares dip in September 2026 and peak in December 2026. Cheaper weeks cluster in September–October 2026. Expect a spike around Christmas and Thanksgiving.”
Baltimore (BWI) to Sacramento (SMF)
5h 55m – Price info not availableRoundtrip tickets price estimation for Baltimore to Sacramento (Aug 2026 - Jun 2027)
LFC Comment
“Baltimore–Sacramento: lowest averages in September 2026, highest in August 2026. Most affordable stretch is September–November 2026 and February 2027. Higher demand during Summer and Thanksgiving.”
Orlando (MCO) to Sacramento (SMF)
5h 53m – Price info not availableRoundtrip tickets price estimation for Orlando to Sacramento (Jul 2026 - May 2027)
LFC Comment
“Across Orlando–Sacramento, lowest levels appear in September 2026, while prices top out in July 2026. Good value around August–October 2026 and February 2027. Travel costs peak around New Year and Thanksgiving.”
Baltimore (BWI) to San Jose (SJC)
5h 50m – Price info not availableBaltimore (BWI) to San Diego (SAN)
5h 40m – Price info not availableBaltimore (BWI) to Las Vegas (LAS)
5h 20m – Price info not availableRoundtrip tickets price estimation for Baltimore to Las Vegas (Jul 2026 - Jul 2027)
LFC Comment
“Looking at flights between Baltimore Washington International and Harry Reid International Airport, lowest levels appear in September 2026, while prices top out in July 2027. Most affordable stretch is September–November 2026 and January 2027. Higher demand during Summer and Independence Day.”
Baltimore (BWI) to Phoenix (PHX)
5h 10m – Price info not availableRoundtrip tickets price estimation for Baltimore to Phoenix (Jul 2026 - May 2027)
LFC Comment
“When flying BWI–PHX, best deals are in August 2026, with peaks in February 2027. Best value shows up in July–October 2026. Fares rise near Christmas and Thanksgiving.”
Chicago (MDW) to Oakland (OAK)
4h 45m – Price info not availableRoundtrip tickets price estimation for Chicago to Oakland (Jul 2026 - Jul 2027)
LFC Comment
“Chicago–Oakland: fares dip in October 2026 and peak in March 2027. Most affordable stretch is August–October 2026 and February 2027. Christmas and Thanksgiving often drives demand.”
Chicago (MDW) to San Francisco (SFO)
4h 45m – Price info not availableChicago (MDW) to San Jose (SJC)
4h 40m – Price info not availableRoundtrip tickets price estimation for Chicago to San Jose (Aug 2026 - Jun 2027)
LFC Comment
“For travel from Chicago to San Jose, sees the cheapest period in October 2026, with the costliest in August 2026. Lowest fares often seen in September–November 2026 and February 2027. Expect a spike around Summer and Memorial Day.”
Las Vegas (LAS) to Albany (ALB)
4h 35m – Price info not availableRoundtrip tickets price estimation for Las Vegas to Albany (Sep 2026 - Jul 2027)
LFC Comment
“Flights between Las Vegas and Albany show that lowest averages in October 2026, highest in July 2027. Lowest fares often seen in September–October 2026, December 2026, and February 2027. Travel costs peak around Independence Day and Summer.”
Chicago (MDW) to Sacramento (SMF)
4h 35m – Price info not availableChicago (MDW) to Seattle (SEA)
4h 35m – Price info not availableRoundtrip tickets price estimation for Chicago to Seattle (Jul 2026 - May 2027)
LFC Comment
“Chicago–Seattle: sees the cheapest period in August 2026, with the costliest in December 2026. Cheaper weeks cluster in July–October 2026. Expect a spike around Christmas and Thanksgiving.”
Chicago (MDW) to Portland (PDX)
4h 30m – Price info not availableRoundtrip tickets price estimation for Chicago to Portland (Jul 2026 - May 2027)
LFC Comment
“Chicago–Portland: sees the cheapest period in August 2026, with the costliest in March 2027. Good value around August–November 2026. Fares rise near Christmas and Thanksgiving.”
Chicago (MDW) to Los Angeles (LAX)
4h 30m – Price info not availableRoundtrip tickets price estimation for Chicago to Los Angeles (Jul 2026 - May 2027)
LFC Comment
“Looking at flights between Chicago Midway International and Los Angeles International, best deals are in September 2026, with peaks in July 2026. Best value shows up in August–November 2026. Christmas and Thanksgiving typically pushes prices up.”
Chicago (MDW) to Burbank (BUR)
4h 30m – Price info not availableRoundtrip tickets price estimation for Chicago to Burbank (Aug 2026 - Jul 2027)
LFC Comment
“Across Chicago–Burbank, sees the cheapest period in September 2026, with the costliest in July 2027. Cheaper weeks cluster in September–November 2026 and February 2027. Christmas and Memorial Day often drives demand.”
Chicago (MDW) to Long Beach (LGB)
4h 30m – Price info not availableDallas (DAL) to Seattle (SEA)
4h 25m – Price info not availableRoundtrip tickets price estimation for Dallas to Seattle (Jul 2026 - May 2027)
LFC Comment
“For travel from Dallas to Seattle, sees the cheapest period in September 2026, with the costliest in March 2027. Budget-friendly in August–November 2026. Travel costs peak around Christmas and Spring break.”
Chicago (MDW) to San Diego (SAN)
4h 25m – Price info not availableRoundtrip tickets price estimation for Chicago to San Diego (Jul 2026 - May 2027)
LFC Comment
“Flights between Chicago and San Diego show that sees the cheapest period in August 2026, with the costliest in March 2027. Lowest fares often seen in July–October 2026. Christmas and Thanksgiving often drives demand.”
Las Vegas (LAS) to Baltimore (BWI)
4h 25m – Price info not availableRoundtrip tickets price estimation for Las Vegas to Baltimore (Jul 2026 - Jul 2027)
LFC Comment
“On the Las Vegas–Baltimore route, fares dip in September 2026 and peak in July 2027. Lowest fares often seen in September–November 2026 and February 2027. Higher demand during Summer and Memorial Day.”
