Best Flights starting from $217
from$217economy
Washington, D.C. (DCA)
Sat, May 16
Roundtrip
San Francisco (SFO)
Wed, May 20
from$290economy
Washington, D.C. (DCA)
Tue, May 19
Roundtrip
San Francisco (SFO)
Sat, May 23
from$310economy
Washington, D.C. (DCA)
Fri, May 15
Roundtrip
San Francisco (SFO)
Tue, May 19
from$317economy
Washington, D.C. (DCA)
Wed, May 20
Roundtrip
San Francisco (SFO)
Sun, May 24
from$402economy
Washington, D.C. (DCA)
Mon, May 18
Roundtrip
San Francisco (SFO)
Fri, May 22
from$407economy
Washington, D.C. (DCA)
Thu, May 21
Roundtrip
San Francisco (SFO)
Mon, May 25
from$410economy
Washington, D.C. (DCA)
Sun, May 17
Roundtrip
San Francisco (SFO)
Thu, May 21
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Other Destinations
Washington, D.C. (DCA) to Miami (Any) in May from $114
From $114
Washington, D.C. (DCA) to Oklahoma City (OKC) in May from $180
From $180
Washington, D.C. (DCA) to Indianapolis (IND) in May from $209
From $209
Washington, D.C. (DCA) to Sarasota (SRQ) in May from $275
From $275
Washington, D.C. (DCA) to Reno (RNO) in May from $299
From $299
Washington, D.C. (DCA) to Oranjestad (AUA) in May from $364
From $364
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
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
✈️ Flight Guide: Washington, D.C. (DCA) → San Francisco (SFO)
Complete travel information for your May journey
Departing from Washington, D.C. (DCA) FAQs
Search flexible dates for weekdays and mid-week departures, set price alerts on Google Flights or Skyscanner, and compare low-cost carriers and legacy airlines. March can offer off-peak deals after winter holidays and before spring break in many markets, so book 3–8 weeks out for the cheapest economy fares and subscribe to fare sale alerts. Consider nearby airports like Oakland and San Jose for additional low-cost options.
Popular, frequently discounted routes from San Francisco International Airport (SFO) include Los Angeles (LAX), Las Vegas (LAS), Seattle (SEA), Denver (DEN) and New York (JFK/EWR). These hubs and leisure markets often have multiple daily flights and competition that drives economy fares down. Look for nonstop deals and consider off-peak departure times to maximize savings.
Baggage allowances depend on the airline and fare class; many basic economy fares exclude checked bags and may restrict carry-on size on ultra-low-cost carriers. Always check the airline's baggage policy before booking and factor baggage fees into the total price of the cheapest fares. Pack a personal item that fits under the seat to avoid additional carry-on fees.
Yes—December often features Black Friday, Cyber Monday, and holiday flash sales from airlines operating at San Francisco International Airport (SFO), plus increased competition on popular holiday routes. For December travel, monitor fare alerts early (August–October) and lock in tickets when a fare drop aligns with your travel window to avoid last-minute premiums. Consider flexible return dates around the holidays to reduce cost.
Compare fares from San Francisco International Airport (SFO) with Oakland International Airport (OAK) and Norman Y. Mineta San Jose International Airport (SJC) because low-cost carriers and different route networks can create cheaper alternatives. Use multi-airport search features, factor in ground transfer time and costs, and book the best overall value rather than the absolute cheapest ticket. For some routes, driving to a nearby airport and taking a budget carrier will save money.
Before flying from San Francisco International Airport (SFO), verify the latest entry requirements, mask policies, and airline-specific rules on official airline sites and government travel advisories. Although many restrictions have eased, some destinations may still require health documentation or testing; always check both departure and arrival regulations 72–24 hours before travel. Bookmark official sources like the U.S. State Department and airport notifications for the most current guidance.
Arriving at San Francisco (SFO) FAQs
"Cheapest Economy (ECONOMY)" refers to the lowest fare class for economy seats, typically basic economy, which includes limited amenities and stricter change/cancellation policies. These fares are ideal for budget travelers prioritizing low price over flexibility; verify baggage allowances and seat assignment rules before purchasing. For routes from San Francisco International Airport (SFO), compare total price including fees to ensure it is the true cheapest option.
In April, search flexible date ranges, opt for midweek arrivals, and compare nonstop and one-stop itineraries from San Francisco International Airport (SFO). Use fare aggregators, set alerts, and check both major airlines and low-cost carriers; consider flying into alternate airports near your final destination to secure a lower total trip cost. Booking 4–8 weeks ahead often yields the best April economy fares.
Upgrades from cheapest economy to premium economy or extra legroom seats are sometimes available for a fee at booking, check-in, or at the gate, but availability varies by airline and route. If flexibility and comfort are priorities, compare the cost of an upfront premium economy ticket vs. paying for add-ons after booking. For flights departing San Francisco International Airport (SFO), upgrade costs tend to rise closer to departure.
Common affordable arrival destinations when searching cheapest economy from San Francisco International Airport (SFO) include Los Angeles, Las Vegas, Phoenix, Denver, Seattle, and Mexico City. These cities benefit from frequent service and airline competition that reduces fares. To optimize savings, consider alternative nearby airports like Oakland or San Jose and compare total travel costs including ground transfers.
Cheapest economy fares usually have strict change fees or are non-changeable without paying a fare difference and penalties; many are non-refundable. Some airlines have introduced limited flexibility for economy fares, but you should always read the fare rules before booking. Consider buying refundable fares or trip insurance if you anticipate changes.
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Events & Festivals Impacting Fares — Plan Around San Francisco International Airport (SFO)
Major events that frequently affect fares at San Francisco International Airport (SFO) include: Chinese New Year festivities (February), Bay to Breakers and Pride events (June), Fleet Week (October), and the holiday surge in December. National events such as SXSW (March, Austin), Coachella (April, Indio), and major sports playoffs also shift demand for flights into and out of SFO and nearby airports. If you’re seeking the cheapest economy fares, avoid main event weekends or book months in advance. CTA: Check event calendars for both your origin and destination before booking SFO economy flights to score the best price.
Best Time to Fly Cheap Economy from San Francisco International Airport (SFO)
For the cheapest economy fares from San Francisco International Airport (SFO), prioritize September and January (shoulder and post-holiday months) and travel midweek (Tues–Thurs). Book domestic economy flights 3–8 weeks ahead and international economy 2–6 months ahead depending on the season. Avoid peak holiday windows (late December, mid-July) when fares spike. CTA: Check fare calendars and set price alerts for your preferred SFO routes to identify the optimal booking window.
Direct vs Connecting Flights — Cost Tradeoffs from San Francisco International Airport (SFO)
Connecting flights from San Francisco International Airport (SFO) often reduce the fare compared to nonstop economy tickets, especially on long-haul and international routes. Pros: lower prices, more routing options, potential for multi-city stops; Cons: longer travel time, higher missed-connection risk, and sometimes separate baggage policies. Use layovers with at least 1.5–2 hours for domestic and 2.5+ hours for international to reduce risk. CTA: Compare nonstop and one-stop options when searching SFO economy flights to find the best price-time tradeoff.
Airline Comparison — Cheapest Economy Options from San Francisco International Airport (SFO)
United Airlines: Large hub at San Francisco International Airport (SFO) with frequent flights and competitive economy fares, but basic economy restrictions can be tight. Alaska Airlines: Strong West Coast network with often attractive economy pricing and better loyalty benefits for West Coast travelers. Southwest: Value-oriented fare structure with two free checked bags on many domestic routes from nearby airports like Oakland; check SFO availability. JetBlue and Delta: Competitive transcontinental fares and seasonal sales. Ultra-low-cost carriers (Spirit, Frontier) may not serve SFO directly but flying from nearby Oakland or San Jose can unlock the lowest economy base fares with added fees for bags and seats. CTA: Compare total landed cost including baggage and seat fees to identify the true cheapest economy carrier for your SFO route.
Seasonal Travel Tips for Cheap Economy Flights from San Francisco International Airport (SFO)
Spring (Mar–May): Watch for shoulder-season sales and spring-break surges; pack layers for San Francisco’s microclimates. Summer (Jun–Aug): Book early for peak-season economy prices; travel midweek to save. Fall (Sep–Nov): Best for cheap economy fares—use this shoulder season to find bargains. Winter (Dec–Feb): Expect holiday premiums; consider early-December or post-New Year windows for lower fares. Always factor in local events and school calendars when searching for the cheapest economy flights from San Francisco International Airport (SFO). CTA: Subscribe to seasonal fare alerts to capture sale windows tailored to SFO departures.
Flight Times & Schedules — San Francisco International Airport (SFO) Typical Durations
Typical nonstop flight durations from San Francisco International Airport (SFO) are: to Los Angeles (LAX) ~1h 20m, Las Vegas (LAS) ~1h 30m, Seattle (SEA) ~2h 10m, Denver (DEN) ~2h 45m, New York (JFK/EWR) ~5h 30m–6h, London (LHR) ~10h. Budget economy schedules often cluster in early morning and late evening windows to maximize aircraft utilization, which can produce cheaper fares. For the cheapest economy options, search for non-peak departures (Tues–Thurs mid-morning/late-night) and compare one-stop itineraries that can reduce the total fare but add travel time. CTA: Use schedule filters to find the best balance of price and travel time for SFO departures.
Cheap Flights Guide — From San Francisco International Airport (SFO) to Economy (ECONOMY)
Finding the cheapest economy flights from San Francisco International Airport (SFO) requires a mix of flexible search behavior, monitoring, and timing. Primary strategies include using fare comparison sites, setting multi-alerts, checking nearby airports (Oakland International Airport (OAK), Norman Y. Mineta San Jose International Airport (SJC)), and booking mid-week or red-eye flights. Secondary tactics: clear cookies or use incognito for price checks, combine one-way tickets on different carriers, and use airline newsletters for flash sales. Local modifiers such as 'San Francisco to Las Vegas cheap flights' or 'SFO economy deals to Mexico City' improve search results. CTA: Sign up for fare alerts and start comparing SFO economy deals now to lock the best prices.