Other Options for This Route
Chicago (ORD) to San Francisco (SFO) in September from $179
From $179
Chicago (ORD) to San Francisco (SFO) in October from $145
From $145
Chicago (ORD) to San Francisco (SFO) in February from $256
From $256
Best Flights starting from $180
Economy
Chicago (ORD)
Mon, May 4
Roundtrip
San Francisco (SFO)
Mon, May 11
Economy
Chicago (ORD)
Tue, May 5
Roundtrip
San Francisco (SFO)
Tue, May 12
Economy
Chicago (ORD)
Wed, May 6
Roundtrip
San Francisco (SFO)
Wed, May 13
Economy
Chicago (ORD)
Fri, May 8
Roundtrip
San Francisco (SFO)
Fri, May 15
Economy
Chicago (ORD)
Thu, May 7
Roundtrip
San Francisco (SFO)
Thu, May 14
Economy
Chicago (ORD)
Sat, May 9
Roundtrip
San Francisco (SFO)
Sat, May 16
Economy
Chicago (ORD)
Sun, May 3
Roundtrip
San Francisco (SFO)
Sun, May 10
Other Options for This Route
Other Destinations
Chicago (ORD) to New York (JFK) in May from $69
From $69
Chicago (ORD) to Fort Lauderdale (Any) in May from $72
From $72
Chicago (ORD) to Las Vegas (LAS) in May from $91
From $91
Chicago (ORD) to Orlando (MCO) in May from $103
From $103
Chicago (ORD) to Phoenix (PHX) in May from $116
From $116
Chicago (ORD) to San Jose (SJC) in May from $119
From $119
Flights from Other Cities
Grand Rapids (GRR) to San Francisco (SFO) in May from $194
From $194
Salt Lake City (SLC) to San Francisco (SFO) in May from $198
From $198
Fort Lauderdale (Any) to San Francisco (SFO) in May from $199
From $199
Pittsburgh (PIT) to San Francisco (SFO) in May from $254
From $254
Orlando (MCO) to San Francisco (SFO) in May from $283
From $283
Durham (RDU) to San Francisco (SFO) in May from $289
From $289
✈️ Flight Guide: Chicago (ORD) → San Francisco (SFO)
Complete travel information for your May journey
Departing from Chicago (ORD) FAQs
San Francisco International Airport (SFO) is a major hub served by legacy carriers such as United Airlines and American Airlines as well as low-cost carriers like Southwest and Alaska Airlines. For the cheapest economy fares, compare low-cost carriers, flash sales, and mixed-carrier itineraries; booking 1–3 months in advance typically yields the best budget economy prices. Use fare alerts and flexible-date searches to find the lowest available economy seats.
For domestic economy departures from San Francisco International Airport (SFO), arrive at least 90 minutes before departure; for international economy flights allow 2.5–3 hours to clear check-in, security, and possible passport control. During peak travel months (July and December) add extra buffer time for longer security lines and parking or rideshare drop-off delays.
December can have both high holiday fares and occasional last-minute deals; early December (first two weeks) sometimes offers lower economy fares before peak holiday travel spikes. If flexible, look for midweek departures and subscribe to airline newsletters and fare-alert tools to catch economy sales from San Francisco International Airport (SFO).
San Francisco International Airport (SFO) offers BART (Bay Area Rapid Transit) direct service to downtown San Francisco, regional buses, airport shuttles, taxis, rideshares (Uber/Lyft), and long-term parking with shuttle service. For budget-conscious travelers flying economy, BART or shared airport shuttles are often the most cost-effective way to access nearby destinations like Oakland, San Jose, and Palo Alto.
The busiest departure months at San Francisco International Airport (SFO) are typically June through August and late November to early January due to summer travel and the winter holidays. High demand during these peak months often increases economy fares, so book early, search flexible dates, or consider shoulder months like May and September to find cheaper economy options.
Many airlines allow checked musical instruments and sports equipment from San Francisco International Airport (SFO) for an additional fee even on economy fares, though policies vary by carrier and fare class. Always confirm dimensions, weight limits, and fees with your airline before travel and arrive early to allow gate agents to assist with oversized baggage if needed.
Arriving at San Francisco (SFO) FAQs
Cheapest Economy Fare (CHEAP) refers to the lowest-cost economy-class ticket available on a given route, often with restrictions like no seat selection, limited or no refunds, and additional baggage fees. These fares can significantly lower your ticket cost but require careful review of carrier rules; sometimes upgrading to a basic economy or standard economy adds flexibility worth the price.
From San Francisco International Airport (SFO), the cheapest economy fares commonly serve major domestic markets like Los Angeles, Seattle, Las Vegas, and San Diego, as well as international cities including Mexico City, Vancouver, London, and Tokyo via sales or connecting itineraries. Use flexible-date tools and consider nearby airports like Oakland (OAK) or San Jose (SJC) to expand cheap economy options.
Cheapest economy fares frequently exclude free checked baggage and complimentary seat selection; fees are charged per airline policy. To avoid surprises on arrival, check your ticket’s included services before flying and consider purchasing baggage or seat options in advance if needed.
July arrivals in busy cities such as Los Angeles and New York can face long security and taxi queues as well as higher taxi and rideshare surge pricing. If you arrive on a cheapest economy ticket, plan for potential delays, pre-book ground transport, and pack essentials in a carry-on to avoid checked-baggage fees and delays.
Upgrades from cheapest economy to a higher economy or premium cabin are sometimes available at the gate or online prior to arrival, subject to availability and aircraft load. Check your airline’s upgrade options in advance and watch for last-minute offers at the gate if you prefer more comfort after arrival.
When targeting the cheapest economy arrival options, consider nearby major cities and alternate airports such as Oakland (serving the Bay Area), San Jose (Silicon Valley), Sacramento (state capital), and even farther hubs like Los Angeles or Reno depending on route pricing. Expanding your search radius often reveals lower economy fares and better routing options.
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Events & Festivals Impacting Flights From San Francisco International Airport (SFO)
High-profile events like San Francisco Pride (June), Outside Lands music festival (August), Fleet Week (October), and large tech conferences (various months) can drive up economy fares and airport congestion at San Francisco International Airport (SFO). Weekend sporting events, film festivals, and major conventions also create price spikes. For cheaper economy travel, avoid event dates or book well in advance and use nearby airports. CTA: Check event calendars before you book and compare economy fares for alternate dates.
Best Time to Fly from San Francisco International Airport (SFO) — Save on Economy Fares
The best time to fly from San Francisco International Airport (SFO) for cheap economy fares is during shoulder months (April–May, September–October) and midweek travel days (Tuesday–Thursday). For domestic economy flights, book 1–3 months ahead; for international economy routes, aim 2–6 months out. Use flexible-date searches and fare alerts to capitalize on fare dips. CTA: Search for travel in shoulder months to find lower economy fares from SFO.
Direct vs Connecting Flights From San Francisco International Airport (SFO) — Economy Tradeoffs
Direct (nonstop) flights from San Francisco International Airport (SFO) save time but often come at a premium in economy fares, while connecting itineraries can be substantially cheaper but add travel time and connection risk. For budget travelers, one-stop routes via hubs like Denver, Dallas, or Seattle often unlock the lowest economy prices. Always allow generous connection times when booking cheapest economy fares to mitigate delays. CTA: Compare nonstop and one-stop economy options from SFO to find the best balance of cost and convenience.
Airline Comparison for Economy Fares From San Francisco International Airport (SFO)
United Airlines (major SFO hub) often offers plentiful nonstop options from San Francisco International Airport (SFO) but basic-economy restrictions can limit flexibility. Alaska Airlines and Southwest frequently provide competitive economy fares and customer-friendly change policies; Southwest includes two free checked bags on most fares which can offset higher ticket prices. International carriers like British Airways and ANA serve long-haul economy routes from SFO with periodic sale fares. Assess baggage fees, seat selection costs, and change policies when comparing economy fares. CTA: Compare airlines operating from SFO side-by-side to find the best economy value for your trip.
Seasonal Travel Tips for Economy Travelers Using San Francisco International Airport (SFO)
Winter: Book early for holiday travel; pack layers for variable Bay Area weather. Spring: Look for shoulder-season deals and midweek departures to save on economy fares. Summer: Expect peak pricing and crowded terminals; consider early-morning flights and alternate airports. Fall: One of the best seasons for cheaper economy fares and comfortable travel conditions. Always check weather and event calendars and sign up for fare alerts. CTA: Use seasonal tips to plan and book cheap economy flights from San Francisco International Airport (SFO) today.
Flight Time & Schedules From San Francisco International Airport (SFO)
Typical nonstop flight durations from San Francisco International Airport (SFO): to Los Angeles ~1h25, to New York ~5h40, to London ~10h45, and to Tokyo ~11h0. Schedules intensify during peak months (June–August, December) and are lighter in shoulder months like September and October. For cheapest economy fares, target early-morning or late-night departures, and consider one-stop itineraries that spread demand to reduce cost. CTA: Check flight times from SFO across multiple carriers and compare schedules to find the most affordable economy options.
Cheap Flights From San Francisco International Airport (SFO) — Economy Fare Strategies
Find cheap flights from San Francisco International Airport (SFO) by combining flexible-date searches, alternate airports (Oakland International Airport (OAK), Norman Y. Mineta San Jose International Airport (SJC)), and fare-alert tools. Primary keywords include 'cheap flights from SFO' and 'economy airfare'; secondary keywords like 'flexible dates', 'low-cost carriers', and LSI terms such as 'budget airfare', 'fare sales', and 'nonstop vs connecting' should be used in search queries. CTA: Compare economy fares from SFO now and sign up for alerts to capture flash sales.