Best Flights starting from $659
Economy
San Diego (Any)
Tue, Mar 3
Roundtrip
London (LHR)
Thu, Mar 12
Economy
San Diego (Any)
Wed, Mar 4
Roundtrip
London (LHR)
Fri, Mar 13
Economy
San Diego (Any)
Sun, Mar 8
Roundtrip
London (LHR)
Tue, Mar 17
Economy
San Diego (Any)
Mon, Mar 9
Roundtrip
London (LHR)
Wed, Mar 18
Economy
San Diego (Any)
Sat, Mar 7
Roundtrip
London (LHR)
Mon, Mar 16
Economy
San Diego (Any)
Fri, Mar 6
Roundtrip
London (LHR)
Sun, Mar 15
Economy
San Diego (Any)
Thu, Mar 5
Roundtrip
London (LHR)
Sat, Mar 14
Other Options for This Route
Other Destinations
San Diego (Any) to Miami (Any) in March from $143
From $143
San Diego (Any) to San Antonio (SAT) in March from $189
From $189
San Diego (Any) to Puerto Vallarta (PVR) in March from $316
From $316
San Diego (Any) to Akron (CAK) in March from $329
From $329
San Diego (Any) to Montego Bay (MBJ) in March from $450
From $450
San Diego (Any) to Nice (NCE) in March from $642
From $642
Flights from Other Cities
Lagos (LOS) to London (LHR) in March from $401
From $401
New York (JFK) to London (LHR) in March from $456
From $456
Charlotte (CLT) to London (LHR) in March from $507
From $507
Victoria (YYJ) to London (LHR) in March from $525
From $525
Seattle (SEA) to London (LHR) in March from $581
From $581
Toronto (YYZ) to London (LHR) in March from $594
From $594
✈️ Flight Guide: San Diego (Any) → London (LHR)
Complete travel information for your March journey
Departing from San Diego (Any) FAQs
For international economy departures from London Heathrow Airport (LHR), arrive 2.5 to 3 hours before scheduled departure to allow time for check-in, security, and potential queues. During holiday months like December and July expect longer lines—plan an extra 30–45 minutes. Use online check-in and Heathrow Express or public transport to minimize last-minute stress.
Typically, the cheapest months for economy flights from London Heathrow Airport (LHR) are January (post-New Year), February, and late October when demand is lower. Seasonal sales and midweek departures (Tuesdays and Wednesdays) also drive down fares. Use fare alerts and flexible date searches to capture the best LHR economy deals.
Baggage allowances vary by airline and fare class; most international economy fares include one carry-on and one personal item, but checked baggage may be extra. For flights from London Heathrow Airport (LHR), verify your airline's weight and dimension limits before travel and prepay for checked bags to save money. Keep essentials and documents in your cabin bag in case of delays or lost luggage.
Yes — the Piccadilly Line (London Underground) runs 24-hour on some weekends and is often the cheapest option; Night Tube or local night buses and coaches like National Express also serve Heathrow at reduced rates. Pre-book long-distance coaches or check discounted taxi apps for fixed fares; during overnight hours, compare cost vs. convenience if carrying lots of luggage.
In December, London Heathrow Airport (LHR) experiences peak holiday traffic, so expect longer security queues and busier check-in desks—arrive at least 3 hours early and use Fast Track if available. Pack carry-on liquids within limits to speed security checks and sign up for airport notifications for gate changes and delays. Consider traveling on off-peak days around holidays to find cheaper economy fares.
Changes and upgrades depend on the fare rules set by each carrier; many lowest-cost economy tickets from London Heathrow Airport (LHR) are non-refundable or have change fees. Contact your airline or check fare conditions immediately after purchase—sometimes airlines offer paid upgrade options at online check-in or at the gate. Signing up for airline loyalty programs can help you secure discounted upgrades over time.
Arriving at London (LHR) FAQs
On arrival at Cheapest Economy Arrival (CHEAPEST), expect basic services—priority baggage handling and lounge access are generally not included with the lowest economy fares. Plan for longer baggage claim times during peak seasons and have local transport options researched in advance to avoid premium airport taxis.
Travelers arriving into Cheapest Economy Arrival (CHEAPEST) typically head to major nearby cities such as London, Manchester, Birmingham, Edinburgh, and Dublin for onward connections. For longer-haul itineraries, common destinations include New York, Dubai, and Madrid via connecting flights or ground transport hubs.
In August, expect peak summer crowds and possible delays at Cheapest Economy Arrival (CHEAPEST); pre-booking airport transfers and researching local public transport timetables will save time and money. Arrive with digital boarding passes and local currency or contactless payment to speed through arrival services.
Use intermodal options: regional trains, express coaches, and shared shuttles often offer the best value for travelers arriving on cheap economy fares. Book tickets in advance when possible and compare railcards, coach operators, and pooled rides using apps to secure the lowest fares.
No — the lowest economy fares typically do not include immigration fast-track or visa assistance services. If you need priority immigration, check whether the airport or your airline offers paid Fast Track services, and ensure you have the correct documents ready to avoid delays at border control.
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Events & Festivals — Travel Planning from London Heathrow Airport (LHR)
Check event calendars and compare economy flight prices from London Heathrow Airport (LHR) before booking.
Best Time to Fly from London Heathrow Airport (LHR) for Cheap Economy Fares
Compare prices now and choose midweek economy flights from London Heathrow Airport (LHR) to get the best rates.
Direct vs Connecting Flights from London Heathrow Airport (LHR): Economy Decision Guide
Compare direct and one-stop economy itineraries from London Heathrow Airport (LHR) to find the best price-time balance.
Airline Comparison for Economy Flights from London Heathrow Airport (LHR)
Compare economy fares from London Heathrow Airport (LHR) across carriers to find the best price and route for your trip.
Seasonal Travel Tips for Cheap Economy Flights from London Heathrow Airport (LHR)
Plan your seasonal trip from London Heathrow Airport (LHR) now and compare economy flight options to get the best value.
Flight Times & Schedules from London Heathrow Airport (LHR) — Economy Travel Guide
Flight durations from London Heathrow Airport (LHR) vary widely depending on destination. Economy travelers should consider both direct and connecting options to balance price and travel time.
Check current schedules from London Heathrow Airport (LHR) to your destination and book economy seats on less popular flight times to save.
How to Find Cheap Economy Flights from London Heathrow Airport (LHR)
Search cheap economy flights from London Heathrow Airport (LHR) now and set fare alerts for your preferred dates.