Quick Answer
The Airport Express Bus (Flybus) is the best overall way to get from Keflavik Airport to Reykjavik BSI Bus Terminal. It's affordable (from ~4,990 ISK), fast (45-55 minutes), and direct. For door-to-door convenience, a pre-booked private transfer is fastest but costs 5-6 times more (from ~25,000 ISK). There is no train or subway system in Iceland.
Train & Rail Transport in Iceland: The Reality
Critical Note: Unlike many countries, Iceland has no passenger railway or subway system. The harsh terrain, volcanic activity, and small population have made constructing and maintaining rail lines impractical. Therefore, all comparisons to "train" options are irrelevant for this route.
What Fills the Gap? Iceland's robust network of long-distance buses and the Airport Express services perform the function of intercity trains. The BSI Bus Terminal in Reykjavik acts as the country's central "station," connecting the capital to the airport and all major regions.
| Rail Function | Icelandic Equivalent | Key Operator |
|---|---|---|
| Airport to City Center | Direct Airport Express Bus | Flybus / Gray Line |
| Intercity Travel | Long-Distance Coach Network | Strætó, Sterna, others |
| Central Transport Hub | BSI Bus Terminal, Reykjavik | N/A |
Airport Express Bus (Flybus / Gray Line) â The Recommended Choice
This is the primary and most efficient transport solution for 90% of travelers. Buses are modern, equipped with WiFi, and depart frequently in coordination with flight schedules.
Detailed Step-by-Step Guide:
- Arrival & Ticketing: After collecting luggage, you'll see clearly marked sales desks for Flybus and Gray Line. It's cheaper to book online in advance.
- Boarding: Exit the terminal doors to the bus bays directly outside. Staff will direct you to the correct bus. Drivers handle luggage.
- The Journey: A non-stop 45-55 minute drive on Highway 41, offering views of the stark lava fields.
- Arrival at BSI: BSI Terminal is your final stop. From here, you can connect to local city buses, taxis, or walk to nearby hotels.
Flybus vs. Flybus+ (Door-to-Door Service):
- Standard Flybus: Takes you to BSI Terminal only. Perfect if your hotel is central or you don't mind a short taxi ride.
- Flybus+ (or Gray Line with Hotel Transfer): For a slightly higher fare, at BSI you transfer to a smaller shuttle bus that drops you directly at your hotel or guesthouse in the Reykjavik area. This adds 20-40 minutes to your total trip.
Data Point: According to the Isavia airport authority, over 1.2 million passengers used these bus services in 2023.
Public City Bus (Strætó) â The Ultra-Budget, Complex Option
Iceland's public bus, Strætó, runs between KEF and Reykjavik but is not designed for air travelers with luggage and is far less convenient.
Why It's Usually Not Recommended:
- Indirect Route: Bus 55 does not go directly to BSI. It requires a transfer in the town of Háholt to Bus 1 or 57 to reach Reykjavik city center.
- Infrequent Service: Limited schedules, especially on weekends and evenings. Not aligned with flight times.
- Luggage & Comfort: Space for large suitcases is very limited, and the bus serves local commuters.
- Total Time: Can exceed 90-120 minutes with the wait and transfer.
Cost: ~1,980 ISK if using a pre-paid Klapp card or app. Slightly more if paying cash on board. Only consider this if you are an experienced budget traveler with minimal luggage and time to spare.
Taxi & Private Transfer â The Premium Door-to-Door Solution
This is the fastest and most convenient, but also the most expensive, option. Ideal for groups, families with young children, those with mobility issues, or arrivals after the last bus has departed.
What to Expect & How to Book:
Taxis: Available at the rank outside arrivals. The meter will run for the 50km journey. Estimated Cost: 25,000 - 35,000 ISK (â$180-$250).
Pre-Booked Private Transfers: Companies like Airport Direct or BusTravel offer fixed-price, pre-paid services. A driver will meet you in the arrivals hall with a name sign.
- Standard Car (1-4 people): From ~25,000 ISK.
- Minivan (5-8 people): From ~35,000 ISK.
When It Makes Financial Sense: For a group of 4, a private transfer (~30,000 ISK total) can be comparable to 4 bus tickets (4 x 5,500 ISK = 22,000 ISK) and provides superior convenience.
Ticket & Cost Comparison: Keflavik Airport to BSI Terminal
| Transport Method | Estimated Cost (One-Way) | Travel Time | Key Advantages | Best For |
|---|---|---|---|---|
| Airport Express Bus (Flybus) | 4,990 - 6,900 ISK | 45-55 min | Best value, direct, frequent, WiFi, easy luggage. | MOST TRAVELERS (Best Overall) |
| Airport Bus + Hotel Transfer (Flybus+) | 7,900 - 9,900 ISK | 60-90 min total | Door-to-door service, no extra taxi needed. | Those with hotels outside city center. |
| Public Bus (Strætó) | ~1,980 ISK | 90-120+ min | Cheapest possible option. | Solo ultra-budget travelers (Cheapest) |
| Taxi (Metered) | 25,000 - 35,000 ISK | ~45 min | Immediate departure, direct to any address. | Late-night arrivals, urgency. |
| Pre-Booked Private Transfer | 25,000 - 40,000 ISK (per vehicle) | ~45 min | Personalized meet & greet, fixed price, best for groups. | Families, groups of 3+, special needs. |
Note: Prices are subject to change and are approximate in ISK (Icelandic Króna). Always check operator websites for the most current rates.
Traveler Experience & Insider Tips
Navigating BSI Bus Terminal:
BSI is more than a bus stop; it's a small complex with a café, tourist information, and car rental desks. If taking a taxi from BSI to your final hotel, the rank is right outside. Many downtown hotels are within a 15-20 minute walk.
Essential Tips for a Smooth Transfer:
- Book Your Bus Online: Not only is it cheaper, but it also guarantees you a seat during peak season (June-August). Use your phone's confirmation email as a ticket.
- Currency & Payment: All buses, taxis, and transfers accept major credit/debit cards (Visa, Mastercard). You do not need Icelandic cash for this transfer.
- Seasonal Considerations: In winter (Nov-Mar), road conditions can slow travel. Buses are equipped for this, but always allow extra time. Delays are rare but possible in severe storms.
- Rental Car Alternative: If you plan to explore the Ring Road or Golden Circle, picking up a rental car at KEF Airport is the most logical choice. The drive to Reykjavik is straightforward on Highway 41.
- Connection to Blue Lagoon: Many Airport Express Buses offer direct add-on routes to the Blue Lagoon on your way to or from the airport, which is highly efficient.
FAQs: From Keflavik International Airport to Reykjavik
What is the cheapest way to get from Keflavik Airport to Reykjavik BSI Terminal?
The Airport Express Bus (Flybus) is the cheapest practical option, starting from ~4,990 ISK. The public bus is cheaper (~1,980 ISK) but is significantly less convenient for travelers with luggage.
What is the fastest way to get from KEF to BSI Bus Terminal?
A private taxi or transfer is the fastest door-to-door option at about 45 minutes. The Airport Express Bus is nearly as fast for the main journey (45-55 min to BSI) and is the best balance of speed and cost.
Is there a direct bus from Keflavik Airport to Reykjavik city center?
Yes. The Airport Express Bus (Flybus and Gray Line) offers direct, non-stop service from KEF Airport to the Reykjavik BSI Bus Terminal, which is the main transport hub located at the edge of the city center.
How do I get from Keflavik to Reykjavik in the middle of the night?
Your only reliable option for a very late-night arrival (after the last scheduled bus) is a pre-booked private transfer or taxi, which operates 24/7. Always book this in advance if your flight arrives late.
Where do I buy tickets for the Flybus from Keflavik Airport?
You can buy tickets online in advance (highly recommended), at the clearly marked Flybus/Gray Line sales desks in the KEF arrivals hall, or from the driver subject to availability (risky in peak season).
Can I use the Flybus if my flight arrives very early in the morning?
Yes. Airport Express Buses are scheduled to meet virtually all arriving flights, including early morning arrivals. Buses typically depart 35-45 minutes after each flight lands to allow for baggage claim.
Is it worth renting a car at Keflavik Airport instead of taking the bus?
Absolutely, if you plan to explore beyond Reykjavik. For visiting the Golden Circle, South Coast, or Ring Road, picking up a rental car at KEF is the most flexible and efficient choice. For a city-only stay, the bus is sufficient.
How much luggage can I take on the airport bus?
Airport buses allow one large suitcase and one carry-on per passenger free of charge. The luggage is stored in the undercarriage. Additional or oversized luggage (like ski/sports equipment) may incur a small fee.