Best Flights starting from $50
from$50economy
Denver (Any)
Sat, May 9
One-way
San Francisco (SFO)
—
from$50economy
Denver (Any)
Mon, May 11
One-way
San Francisco (SFO)
—
from$50economy
Denver (Any)
Wed, May 13
One-way
San Francisco (SFO)
—
from$50economy
Denver (Any)
Thu, May 14
One-way
San Francisco (SFO)
—
from$54economy
Denver (Any)
Tue, May 12
One-way
San Francisco (SFO)
—
from$76economy
Denver (Any)
Fri, May 8
One-way
San Francisco (SFO)
—
from$80economy
Denver (Any)
Sun, May 10
One-way
San Francisco (SFO)
—
from$80economy
Denver (Any)
Fri, May 15
One-way
San Francisco (SFO)
—
Fields updated — click View Prices to search ↑
Other Destinations
Denver (Any) to Las Vegas (LAS) in May from $61
From $61
Denver (Any) to Nashville (BNA) in May from $68
From $68
Denver (Any) to Ontario (ONT) in May from $80
From $80
Denver (Any) to Phoenix (Any) in May from $108
From $108
Denver (Any) to Miami (MIA) in May from $112
From $112
Denver (Any) to San Diego (Any) in May from $123
From $123
Flights from Other Cities
Seattle (SEA) to San Francisco (SFO) in May from $49
From $49
Seattle (SEA) to San Francisco (SFO) in May from $97
From $97
Chicago (ORD) to San Francisco (SFO) in May from $125
From $125
Indianapolis (IND) to San Francisco (SFO) in May from $160
From $160
Norfolk (ORF) to San Francisco (SFO) in May from $160
From $160
Atlanta (Any) to San Francisco (SFO) in May from $180
From $180
✈️ Flight Guide: Denver (Any) → San Francisco (SFO)
Complete travel information for your May journey
Departing from Denver (Any) FAQs
To find the cheapest flights from San Francisco International Airport (SFO) in June, compare prices across multiple search engines like Google Flights, Skyscanner and Kayak, set fare alerts, and be flexible with midweek travel dates. June can have variable demand due to early summer travel; booking 4–8 weeks in advance often secures the best economy fares. Consider flying early morning or late night to catch lower-priced economy seats.
Baggage and carry-on allowances for economy fares departing San Francisco International Airport (SFO) vary by airline—legacy carriers often include one personal item and one carry-on, while ultra-low-cost carriers may charge for both carry-on and checked bags. Always check the airline's official baggage policy before booking and add baggage during purchase to save compared with airport rates. Use airport and airline pages to confirm size and weight limits to avoid fees.
Yes, San Francisco International Airport (SFO) has direct budget and legacy carrier flights to many West Coast destinations such as Los Angeles, Las Vegas, Portland, Seattle, and San Diego, often with frequent daily service. Low-cost carriers and regional affiliates provide multiple economy options—compare fares and departure times for the cheapest itinerary. Direct flights are ideal when you prioritize shorter travel time over lowest possible fare.
For domestic economy flights departing San Francisco International Airport (SFO), arrive at least 90 minutes to 2 hours before departure to allow for security, bag drop and potential shuttle or terminal transfers. If you need to check bags, or if you’re traveling during peak times (holidays or major events), err on the side of 2–3 hours. Use the SFO official app or TSA wait time updates to plan arrival accurately.
Last-minute cheap economy fares from San Francisco International Airport (SFO) in December are rare due to holiday demand; however, monitor airline flash sales, check midweek departures, and search nearby airports (Oakland and San Jose) for competitive pricing. Use flexible date searches and sign up for alerts from fare aggregators to spot occasional last-minute reductions. If possible, travel before mid-December or after New Year’s to find lower prices.
From San Francisco International Airport (SFO) you can reach major budget-friendly destinations including Los Angeles, Las Vegas, Seattle, Phoenix, Denver, New York, and international gateways like Mexico City and Vancouver with frequent economy options. Consider low-cost airlines and regional connections for the cheapest fares and search multi-airport options in the Bay Area for added savings. Compare routes, times, and baggage fees to optimize total trip cost.
Arriving at San Francisco (SFO) FAQs
'Cheapest Fare (ECONOMY)' typically refers to the lowest-priced economy-class ticket available for a given route, often with more restrictive change and baggage rules. These fares maximize cost savings but may charge extra for seat selection, checked bags, and onboard services. Review fare rules carefully and compare total trip cost, not just base fare.
Booking the cheapest economy arrival fare is cost-effective but often restrictive; most low-cost economy tickets restrict date changes or charge significant fees for modifications. If you need flexibility, look for 'economy flexible' or 'premium economy' options or purchase change protection during booking. Balance savings with potential change costs to avoid expensive surprises.
Popular destinations for the cheapest economy fares from San Francisco International Airport (SFO) include Los Angeles, Las Vegas, Seattle, Phoenix, Denver, and Mexico City, as well as seasonal deals to Hawaii. Price competition among carriers on these routes often drives down economy prices. Use aggregate search tools and include nearby airports to find the best arrival options.
To minimize fees when booking the cheapest economy arrival ticket, travel with just a personal item, pre-purchase checked baggage online for a discount, avoid seat selection fees, and use airline credit card perks for checked baggage allowances. Also consider bundling services at booking if it’s still cheaper than paying airport rates. Compare total price including ancillary fees to ensure you’re getting the best deal.
Yes—arrival fares for the cheapest economy seats fluctuate seasonally. For example, January and September often offer lower economy arrival prices due to lower leisure demand, while December and July typically command higher fares. Use monthly trend searches and fare predictors to time purchases for the best economy deals.
Cheap economy arrival fares often connect passengers to major cities such as Los Angeles, Las Vegas, Seattle, New York City, Phoenix, and Denver, as well as to international hubs like Mexico City and Vancouver depending on the route. These cities see high-frequency service and competitive pricing, making them ideal budget targets. Expand your search radius to include nearby airports for even better deals.
1.0.2603.25
Events & Festivals Impacting SFO Economy Fares — Monthly Calendar
Notable events that impact economy fares from San Francisco International Airport (SFO) include San Francisco Pride (June), Outside Lands Music Festival (August), Bay to Breakers (May), Fleet Week (October), and Chinese New Year celebrations (February). Major sports playoffs, conventions, and holiday weekends also cause demand spikes. CTA: Check event dates before booking cheap economy fares to avoid unexpected price surges.
Best Time to Fly Cheap from San Francisco International Airport (SFO)
The best time to fly cheaply from San Francisco International Airport (SFO) is typically January and September, when leisure demand is lower and airlines discount economy seats. Midweek departures (Tuesdays, Wednesdays) and red-eye flights often deliver the cheapest fares. Avoid peak holiday periods like late December and mid-July if you want the lowest economy prices. For international routes, watch shoulder seasons (spring and fall) for the best combination of price and weather.
Direct vs Connecting Flights — Economy Tradeoffs from SFO
Direct flights from San Francisco International Airport (SFO) are faster but often more expensive for popular routes; connecting itineraries can be significantly cheaper in economy class due to competition across hubs. For the cheapest fares, consider one-stop itineraries through hubs like Denver, Phoenix, or Los Angeles, but allow at least 90 minutes for domestic connections and 2+ hours for international ones. If minimizing travel time or the chance of missed connections matters more, prioritize nonstops even at a slightly higher economy fare.
Airline Comparison for Cheapest Economy Fares from San Francisco International Airport (SFO)
United Airlines offers broad global connectivity from San Francisco International Airport (SFO) with competitive economy fares but sometimes higher ancillary fees; Alaska Airlines competes strongly along the West Coast and often has attractive economy pricing and loyalty perks. Southwest (from Oakland and other Bay Area airports) and ultra-low-cost carriers like Spirit and Frontier (via nearby airports) can offer the absolute cheapest base fares but charge for many extras. Compare total trip cost (fare + baggage + seat fees) to find the true cheapest option.
Seasonal Travel Tips for Economy Travelers from San Francisco International Airport (SFO)
Spring: Book early for spring-break peak weeks; pack layers for variable Bay Area weather. Summer: Book 2–4 months ahead and favor red-eye or midweek flights for economy savings. Fall: September and October are excellent for shoulder-season cheap flights—look for sale fares. Winter: Avoid peak holiday dates; if traveling in December, secure economy tickets several months out. Always prepay baggage, use mobile check-in and bring a personal item only to save on ancillary fees when booking the cheapest economy fares.
Flight Times & Schedules for Economy Routes from San Francisco International Airport (SFO)
Flight times from San Francisco International Airport (SFO) vary by destination: to Los Angeles ~1h20, Las Vegas ~1h40, Seattle ~2h15, Denver ~2h50, New York City ~5h30, Mexico City ~4h30, and London ~10h30 nonstop. Budget-friendly economy schedules often include early-morning or late-night flights, which can be cheaper due to lower demand. For multi-leg itineraries, schedule at least 90–120 minutes for domestic connections and 2–3 hours for international connections when booking the cheapest economy fares to avoid missed connections.
Cheap Flights Strategy — SFO Economy Fares & Booking Tips
To find cheap flights from San Francisco International Airport (SFO) in economy class, search across multiple engines, set fare alerts, and use flexible date/month views. Consider nearby airports (Oakland International Airport and Norman Y. Mineta San Jose International Airport) to increase competition and lower prices. Book key peak-period travel (summer, Thanksgiving, Christmas) 2–4 months in advance and target January or September for the lowest fares. CTA: Start now—compare cheap flights from San Francisco International Airport (SFO) and sign up for fare alerts.